Question

Bentley had $40 in birthday money in her piggy bank. He spent $10

Answer 1

$30

Explanation:

If this is a multiple step problem we'll need more context, but if this is it, the answer is $30

Answer 2

Explanation:

linear increase would be something added to an equation.

she started with 40,

she spent 10 on flip flops and also spent 15 of sunglasses those are decreases

she added 20 for allowance which is an increase and we can assume she gets the same amount of allowance every week

so that would be the linear increase