458
the answer is the last one
13 + the cost of 1 brush + the cost of 1 brush = total money spent
Answer:
Slope (m) = 
Step-by-step explanation:
Use the following equation:
Slope 
Let:

Plug in the corresponding numbers to the corresponding variables:

Simplify. Divide common factors from both the numerator and denominator:

is your answer.
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Answer:
do the remaining part
Step-by-step explanation:
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