A 14 1/2 foot by 30 foot concrete wall is to be built using concrete blocks. Find the area of the wall

The area of the wall is 435 square foot.

Step-by-step explanation:

a) Data and Calculations:

One side of the wall (height) = 14 1/2 foot = 14.5 foot

The second side of the wall (length) = 30 foot

The area of the wall = height * length

= 14.5 * 30

= 435 square foot

b) The area of a wall is usually obtained by Height x Length.  It uses the same standard formula of (Length) x (Width) for calculating the area of any surface, only that this time, the width changes to height because of the nature of the wall.

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9

step-by-step explanation:

no solution.