Since

is negative, it doesn't have any real roots.
<span><span>8x</span>+<span>10y</span></span>=<span>9
Hope this helps.</span>
It’s 90 after you multiply the length, width, and height
Answer:
12 months
Step-by-step explanation:
Based on the question
4 books equals to 5 months
x books equals to 15months
To determine the value of X we will have to cross multiply,it means
5x=15×4
5x=60
Divide both sides by 5
x=12
Therefore,x=12
Which means 12 books equals to 12 months