Answer:
A = 114 m²
Step-by-step explanation:
The formula for area of a trapezoid is
A = (1/2)(B + b)h where B is the bottom base, b is the top base, and h is the height.
We are given B = 11, b = 8, and h = 12, plug those values in and simplify
A = (1/2)(11 + 8)(12)
A = (1/2)(19)(12)
A = (19)(6) (half of 12 is 6)
Answer:B
Divide by 8 and look at the whole number
Equivalent representations of percent problems
4:3 total is 7
8:6 total is 14
12:9 total is 21
So there are 9 girls.
=-12