189 because 20.7 rounds to 21 and 9.18 rounds to 9
21 * 9 = 189
Answer:
surface area is 39
Step-by-step explanation:
add the areas of each geometric figure making up the composite 3D figure.
first 3D figure
2+2+6+6
=16---eq 1
from third 3D figure
4+4+10+5
= 23
from 1 and 2
16+23
= 39
may be!! I'm not sure bout this answer
Answer:
f(x)=5x^2 + 9
Step-by-step explanation:
all numbers are odd
