Step-by-step explanation:
Surface area of what shape or solid ?
So first uadd 30 with 25 the the answer u get u multiply with 12 hope that helps
Answer:
A town with 600 people need 10 firefighters
A town with 1500 people will need 1500 x 10/600 = 1500/60
= 25 firefighters
Hope this helps!