Answer:
The solutions are x = -4 and x = 4.
Step-by-step explanation:
Solving a quadratic equation:
We have to find x for which 
.
In this question:
So
The solutions are x = -4 and x = 4.
She can buy a maximum of 12 books for her music class
Y = 3x + 13
You can get this by using the same slope and then plugging into the equation to find the intercept. <span />
First, multiply 30 with 25
30 x 25 = Area
Area = 750 square yards
one bag gives you 100 square yards
Divide the two numbers
750/100 = 7.5
Since you cannot buy half a bag, you must round up
8 bags is needed
hope this helps
