Answer:
16ft
Step-by-step explanation:
The answer is 16ft because the area of a trapezoid is a + b/2 x h.
5 + 8/2 = 13/2 = 6.5
104/6.5 = 16
The height is 16ft.
b=18
1/3b -3=3
1/3b-3+3=3+3
1/3b= 6
isolate b
1/3 *3 b= 6 *3
We have,
Introduce variable such that
The sum is therefore
So,
(sadia's age)
(father's age)
Hope this helps :)
It's clearly option D
.............
jk it A