16 - 7 is 9
9 x 2 is 18
His weekly allowance is 18
Answer:
64
Step-by-step explanation:
Answer: P=28 meters
Step-by-step explanation:
× a ⇒ a is the side length
× 
Answer:
5, 5+ 5(1/5) 5 is the number
Answer:
v = ± sqrt(6/5)
Step-by-step explanation:
v^2+2=8-4v^2
Add 4v^2 to each side
v^2+ 4v^2+2=8-4v^2+ 4v^2
5v^2 +2 = 8
Subtract 2 from each side
5v^2 +2-2 = 8-2
5 v^2 = 6
Divide each side by 5
5v^2 /5 = 6/5
v^2 = 6/5
Take the square root of each side
sqrt(v^2) = ± sqrt(6/5)
v = ± sqrt(6/5)
