Solve for d. a - C= d - r
1 answer:
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Answer:
Use the slope-intercept form
y = m x + b
to find the slope m .
m
=
−
Answer: Option D
D. ;
Step-by-step explanation:
We know that the cost of preschool is $ 45 per day plus a monthly fee of $ 70.
We also know that a total of $ 880 was paid last month
To write an equation that represents this situation, let us call "d" the number of days that Barry attends school
So the cost was:
Now we solve the equation for the variable d
Therefore answer is the option D