Arlo puts $22 into his piggy bank to start saving money.

He then puts $7 into the piggy bank at the end of each month.

The total amount of money in his piggy bank at the end of each month will be which of the following:

Starting amount = $22 (even)

End of 1st month = 22 + 7 = $29 (odd)

End of 2nd month = 29 + 7 = $36 (even)

$\therefore$ Total amount will be either an odd or even number.

On Monday Newton harvests 8 pumpkins to sell at the markets.

On each of the following three days he harvests another 5 pumpkins.

The total of pumpkins he has ready for market at the end of each day will be which of the following:

Starting number = 8 (even)

End of Tuesday = 8 + 5 = 13 (odd)

End of Wednesday = 13 + 5 = 18 (even)

End of Thursday = 18 + 5 = 23 (odd)

$\therefore$ Total number of pumpkins will be either an odd or an even number.

Gretchen puts $80 into a savings account to start saving money.

She then puts $24 into the savings account at the end of each month.

The total amount of money in hers savings account at the end of each month will be which of the following:

Starting amount = $80 (even)

End of 1st month = 80 + 24 = $104 (even)

End of 2nd month = 104 + 24 = $128 (even)

End of 3rd month = 128 + 24 = $152 (even)

$\therefore$ Total amount will be always be an even number.

Brandon puts $100 into his savings account to start saving for a holiday.

He then puts $25 into the savings account at the end of each fortnight.

The total amount of money in his savings account at the end of each fortnight will be which of the following:

Starting amount = $100 (even)

End of 1st fortnight = 100 + 25 = $125 (odd)

End of 2nd fortnight = 125 + 25 = $150 (even)

End of 3rd fortnight = 150 + 25 = $175 (odd)

$\therefore$ Total amount will be either an odd or even number.

Midge puts $140 into her savings account to start saving money.

She then puts $50 into the savings account at the end of each month.

The total amount of money in Midge's savings account at the end of each month will be which of the following:

Starting amount = $140 (even)

End of 1st month = 140 + 50 = $190 (even)

End of 2nd month = 190 + 50 = $240 (even)

End of 3rd month = 240 + 50 = $290 (even)

$\therefore$ Total amount will always be an even number.

Jackie puts $25 into her piggy bank to start saving money.

She then puts $15 into the piggy bank at the end of each month.

The total amount of money in Jackie's piggy bank at the end of each month will be which of the following:

Starting amount = $25 (odd)

End of 1st month = 25 + 15 = $40 (even)

End of 2nd month = 40 + 15 = $55 (odd)

$\therefore$ Total amount will be either an odd or even number.