Question

Reiner wants to save $40 to buy a gift for his dad. Reiner's neighbor will pay him weekly to mow the lawn, but Reiner always gives a $2 donation to the food bank in weeks when he earns money. He calculates that it will take him 5 weeks to earn the money for his dad's gift. He draws a bar model to represent the situation.

Answer 1

Earned money = weeks x (salary - donation)
= 5 x (40 - 2)
= $190

Donated money = weeks x donation
= 5 x 2
= $10