a. How many floors are between the seventh and fifteenth floors?
101.65 x .30= 30.50 saving
so take 101.65 - 30.50= 71.15
This can be written as (x+4)(x+4)
Multiply everything in the second parenthesis by the x.
x^2 + 4x
Multiply everything in the second parenthesis by 4.
4x + 16
Add these two equations together.
x^2 + 4x + 4x + 16
Combine like terms.
x^2 + 8x + 16
Hope this helps!
1. Subtract the 6 from both sides
n/5= -10
2. Multiply both sides by 5
n= -50
Answer:
use the app called photomath