Answer:
B
Step-by-step explanation:
-5.4*-1.8=9.72
They cancel each other out since they're both negative, so just ignore the negatives and do the regular multiplication
h = A/πr²
Surface area (A) of a cylinder = πr² × height (h) , where r is the radius.
h = A ÷ πr² = A/πr²
