Answer:
4 pi
Step-by-step explanation:
diameter = 2r
4 =2r
r =2
area = pi × (r)^2
= pi × 2^2
= 4 pi
Answer:
19
Step-by-step explanation:
51-(16)x2
16x2=32
51-32=19
Answer:
"demand"
Step-by-step explanation:
Vocabulary question.
"Demand" refers to the quantity of goods and services that consumers are willing to buy at a given price.