Dexter plans and records his spending. In the coordinate plane below, the x-axis represents the number of days before or after today. For example, -1 would represent yesterday. The y-axis represents the amount of money Dexter planned to spend in dollars. The points (-5, 8) and (2, 8) represent Dexter's planned spending on two separate days.

See attachment for grid

Step-by-step explanation:

Given

Required

Plot the points on a grid

To do this, we make use of a graph (there are several resources to do that online).

See attachment for plot

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40