Answer:
y=2/3x+4.3
Step-by-step explanation:
y=mx+c
(5-3)/(1--2)
2/3= gradient
y=2/3x +c
5=2/3(1)+c
-2/3
4.3=c
$87.20
P=70
15+8=23
12-7=5
23+5+8+7+15+12=70
Hope this helped can you pls give me brainlist if you could