You are starting a babysitting business to earn enough money to buy a new iPhone 7 Plus, which costs $769. You already have $240 from last summer. You charge $9.00 per hour for babysitting. Write an inequality that shows how many hours you need to work to earn more than $769.

9 times 59 is 531. 531+240= 771 she needs to work 59 hours.

Step-by-step explanation:

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.