Answer:
its like a 3d rectangle triangle
Step-by-step explanation:
yes
10.625
jj
She can complete 8 costumes
See below
1) x=2-1
x=1
2) (x+1)(x+1)=2(x+1)
3) 10x-20 -11 = 4+3x
10x-3x=20+11+4
7x=35
x=5
