Answer:
84.5
Step-by-step explanation:
12.3(3)+11.9(4)=84.5
87.5
12.3 x 3= 39.9=s
11.9 x 4= 47.6=t
47.6 + 39.9= 87.5
Answer: number one is d and number 3 is c I think
Blurry
radius = 1/2 * diameter = 1/2 * 16 = 8 units
