Answer:
I believe your answer is -7/54
(x^4 - 9)(x^3 + 9)
This is a binomial * binomial. Use the FOIL method for multiplying.
First, outer, inner, last.
x^4 * x^3 = x^7
x°^4 * 9 = 9x^4
-9 * x^3 = -9 x^3
-9 * 9 = -81
Putting it back together.
x^7 +9x^4 -9x^3 - 81
So, 1725 would be 1 and a half month's pay of rent.
The equation would be 1725 divided by 1.5 since that would get us what the two friends paid for one month of rent. Let r= rent.
1725/1.5= r
1725/1.5= 1150
So, rent would equal $1150.
I hope this helps!
~cupcake
The present of 4 out of 30 is 13.33%
The present of 1 out of 30 is 3.33%
The present of 25 out of 30 is 83.33%
<u>Step-by-step explanation:</u>
- The percentage is calculated by dividing the required number with the full quantity and multiplied by 100.
First sum :

Second sum :

Third sum:
