6000 - 1800 = 4200
4200/4 = 1050
so she donated 25% to charity
Answer:
Depending on the shaded area, it will be less than 113 in², so not the last option
Step-by-step explanation:
Area of a circle is A= πr²
if it fits in 12 inch sides, 12 i the diameter and 6 is the radius
A= 3.14(6)²
A= 113 in²
Then, find what the shaded area is
Well if you know the top and the bottom are equal and the two sides are equal. So just add them up
There's nothing here to choose from but it should be something like : q + d = 18; .25q + .10d = 2.85
