Use the table to write and solve an equation to find the number of cars c that a salesperson needs to sell in the fourth month so that
the salesperson’s mean number of cars sold per month is 10.
Month 1 2 3 4
Cars Sold 8 9 12 c

Step-by-step explanation:

Given

Required

What value of c makes the mean = 10

Mean is calculated as

In this case;

Mean = 10 and n = 4;

So, we have:

Multiply both sides by 4

Solve for c

the answer is a

step-by-step explanation:

because your just changing the position of where the shape is