I need to see a photo of the graph to choose the correct answer
Boys: x
gilrs: y
From the text of the task:

Replacing x:

So there are 28 girs and 20 boys
Answer:
225
Step-by-step explanation:
the person chages 40 per hour with a one time service charge of 65. our equation is 40h+65 where h equal hours. the person spend 4 hour so the equation is (40x4)+65. 40x4 is 160. 160 + 65 is 225
7^-2= 1/7^2
= 1/14
= 0.071429