Answer:
54
Step-by-step explanation:
16 Pints
if that's what your asking
Answer:
she was wrong
Step-by-step explanation:
x-4-11 = 0 (4+-1=4-1)
x=15
hence she was wrong
The formula of the midpoint of HE:

We have H(0; 0) and E(2a; 2a). Substitute:
Refer to the attached file
For your understanding,I am sending this too so that u can understand the concept