28(7) + 30(25) = 946 square inches
hope this helps!!
Answer:
what grade are you in
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
Find surface area
SA=2pir^2+2hpir
h=42
r=1.5
SA=2pi1.5^2+2(42)pi1.5
SA=4.5pi+126pi
SA=130.5pi square inches
area/areacoverdperspray≤numberofsprays
130.5pi/150
2.73
so buy 3 cans because you can't get 0.73 cans
A