Answer: 24.63
Step-by-step explanation: To find the area of a circle you square the radius (by 2) and then multiply it by pie.
.4 as a percentage is 40%
7(x - 4) - 3(x + 5)
Distribute the 7 and 3
7x - 28 - 3x - 15
4x - 43
Answer:

Step-by-step explanation:
5x-12=3x+20
plus 12 both sides
5x=3x+32
-3x both sides
2x=32
divide by 2 both sides
x=16
Answer:
D
Step-by-step explanation:
The area of triangle is 1/2BH
Jaret has the info on his base and height