Answer:
40=21+x
Explanation:
x= Rick's age
C
Step-by-step explanation:
1/4--1/2=0.75
This is less than 2 which you get from 1/2 times 2 which =1
1+1=2
15
22-7=15
217.9 cm
V=πr2h=π·3.42·6≈217.90087