3x+7=22
Subtract 7 to both sides
3x=15
Divide by 3
x=5
Answer:
2.4 hours
Step-by-step explanation:

2.4 hours
Answer:
#3
<u>What was the area left unpainted?</u>
Option D
#4
<u>How big is Ben's share?</u>
- 998.50 - 18.6² = 652.54 m²
Option A
#5
<u>The area of a circular pool whose radius is 2 m:</u>
- A = π² = 3.14*2² = 12.56 m²
Option A
It would be D because the equation just seems flipped, but the requirements of x are fulfilled.
7/11 in decimal form rounded to the nearest thousandth is : 0.636