So I have the same Prb I did 45 and I did incorrect so what I know. 45 it’s incorrect
Answer:
208
Step-by-step explanation:
Shaded circles = 6
all circles = 12
ratio of shaded circle to all circles = 6/12 which reduces to 1/2...and in decimal form is 0.5
Answer:

Step-by-step explanation:
Given


Required

First, calculate h(xc)
If 
Then

Solving further:

Substitute h(xc) for x

Substitute 


Answer:
it's d
Step-by-step explanation:
because you first do 3*4 =12 twice because there are two sides, and do 10*3 twice, and 10*4 twice, and add it all up.
so,
24+60+80=164
answer is d.