Answer:
≈ 4.89
Step-by-step explanation:
A = πr²
75 = 3.14 x r²
r² = 75 / 3.14 = 23.89
r = 4.89
Answer:
Letty has 75%
Step-by-step explanation:
15/20 is the same as 75/100 ( 15/20·5) so she has a 75% grade
Answer:
9
Step-by-step explanation:
Use rule of three
15 => 20
x => 12

x = 9
Answer:
It's should be something like this
Answer:
A)-1/5
Step-by-step explanation:
5/6x=-1/6
Multiply each side by 6/5 to isolate x
6/5 * 5/6x =- 1/6 *6/5
x =- 1/5