Elena babysits her neighbor’s children. Her earnings are given by the equation $$y=8.40x, where $$x represents the number of hours she worked and y represents the amount of money she earned. Jada earns $7 per hour mowing her neighbors’ lawns.

b. What is Elena's rate of change and what does it mean?

Elena:

y=8.40*12

y= $100.8

Jade:

y= 7*12

y= $84

Elena receives a higher value per hour, she earns $16.8 more than Jada.

I am unsure of the hours so I put times 12 but if you can give me the hours I would be able to solve it for you more briefly. If you can could please give me the whole question since it is incomplete

answer: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

step-by-step explanation: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

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.