I think $6.75 for 15 juice boxes is better because, each juice box is 0.45.
While $5.50 for 11 juice boxes is 0.50.
And if we were to add 0.50 enough times to make 15 juice boxes it would equal 7.50
RIP OFFFFFFF
THE SECOND ONE IS A WAY BETTER OF A DEAL
The equation is 500<7.50<950
then you solve for x
then you get 66.66<x< 126.66
this means that to make $500 you need to work at least 66.66 hours and to make $950 you need to work for at least 126.66 hours
What we'll do is plug integer values from 1 to 12 into the expression 2*k+14 like shown below:
if k = 1, then 2*k+14 = 2*1+14 = 16
if k = 2, then 2*k+14 = 2*2+14 = 18
if k = 3, then 2*k+14 = 2*3+14 = 20
if k = 4, then 2*k+14 = 2*4+14 = 22
if k = 5, then 2*k+14 = 2*5+14 = 24
if k = 6, then 2*k+14 = 2*6+14 = 26
if k = 7, then 2*k+14 = 2*7+14 = 28
if k = 8, then 2*k+14 = 2*8+14 = 30
if k = 9, then 2*k+14 = 2*9+14 = 32
if k = 10, then 2*k+14 = 2*10+14 = 34
if k = 11, then 2*k+14 = 2*11+14 = 36
if k = 12, then 2*k+14 = 2*12+14 = 38
Add up the results:
16+18+20+22+24+26+28+30+32+34+36+38 = 324
The final answer is 324
Try to see if you can turn them into decimal to make is easier