Surface area of small sphere = 1441cm^2
Surface area of bigger sphere = 2567cm^2
Surface area of largest sphere = 1441 + 2567
= 4008cm²
Must click thanks and mark brainliest
Answer:
6 is less than 9 times b
Step-by-step explanation:
first one is the right one
x=-20
3x-11=4x+9
3x=4x+20
x+20=0