A square has 4 equal sides, so it's 320/4. Each side is 80 cm.
14 would be the answer
Hope this helps...
Let x = a number
3(6 - x) = -9
Divide both sides of equation by 3.
6 - x = -3
Subtract 6 on both sides of equation.
-x = -9
Divide both sides of equation by -1.
x = 9
The number is 9.
The formula is
A=p (1+r/k)^kt
A future value?
P present value 4100
R interest rate 0.04
K compounded monthly 12
T time 10 years
A=4,100×(1+0.04÷12)^(12×10)
A=6,112.41. ..answer