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

hello :

70y^8 + 30y^6 = 2 ( 35 y^8 + 15y^6)

the lenght is : 35 y^8

the width is : 15y^6

step-by-step explanation:

we are given a graph for system of inequalities.

in order to write the system of inequalities for the given graph, we need to find the inequality for each of the line separately.

let us find the slope of dotted line first.

taking two coordinates on the graph.

let us say (0,0) and (3,1).

let us find the slope of the line now.

slope of the dotted line would be =.

y-intercept of dotted line is y=0 only.

plugging slope m= and b=0 in slope-intercept form y=mx+b, we get

.

the line is shaded up of that dotted line.

therefore, for shading up we would take greater than inequality symbol > .

and because it's a dotted line we would take only > symbol in place of = sign in above equation of line.

therefore, inequality for dotted line would be

let us take two points (3,1) and (0,4) on the solid line.

slope of the solid line would be =.

for the solid line we have y-intercept b= 4.

plugging slope m= -1 and b=4 in slope-intercept form y=mx+b, we get

y = -1x + 4.

the line is shaded down of that solid line.

therefore, for shading down we would take less than inequality symbol < .

and because it's a solid line we would take ≤ symbol in place of = sign in above equation of line.

therefore, inequality for solid line would be