Answer:
The area that was not painted is 
Step-by-step explanation:
step 1
Find the area of the rectangle
we know that
The area of a rectangle is equal to

In this problem we have


substitute

step 2
Find the area that was painted

step 3
Find the area that was not painted
Subtract the area that was painted from the total area of rectangle
so

Answer:
y=30x+55
Step-by-step explanation:
$55 is constant because for each trip he will take $55 dollars so that gives you your y-intercept and m=$30 and x is the amount of hours worked. every time x increases he will be making more money
It has to have x decreasing and y decreasing, along with x getting bigger while y gets smaller, and it has to cross x at -5, 0, and 4 so this is your graph
It's the first one you can just add or multiply the expressions to get the answer