For this case, the first thing we must do is define variables.
We have then:
x: number of checks.
y: total cost.
We now write the linear function that represents the problem.
We have then:

Then, Jerome issues 10 checks in a month.
Therefore, we evaluate the function for x = 10.
We have then:
Answer:
a monthly checking account will cost him about:
y = 12.5 $
Answer:
9/2 or 4.5
Step-by-step explanation:
Answer:
3*8 = 24 and 5*4 = 20.
Step-by-step explanation:
Answer:
c.
Step-by-step explanation:
The students in social studies club is bias, the boys will probibly pick the easier one and the teachers will pick the one that causes less mess. but the only way to have a fair and random survey is to ask every student.