Answer:
-3,-2
Step-by-step explanation:
Answer: the area of a figure is 85.13 in²
Step-by-step explanation:
The area of a figure S consists of the area of a semicircle S₁ and the area of a parallelogram S₂

Answer:
a= 24b/5c b= 5ac/24 c= 24b/5a
Step-by-step explanation:
Put the problem into a calculator that can solve with variables.
Suppose x quarts of the 50% solution
0.5x+0.2*20=0.4(x+20)
0.5x+4=0.4x+8
0.1x=4
x=40