Here is answer in the picture I hope this will help to you
I believe the answer is 6
She needs to earn at least 84 to buy the mp3 player
earnings=earningsperhour times numberofhoursworked
earnings per hour=12 dollars
number of hoursworked=h
therefor
earnings=12 ties h or12h
earnings is at least 84
earnings is greater than or equal to 84
earnings<u>></u>84
12h<u>></u>84
solve
12h<u>></u>84
divide both sides by 12
h<u>></u>7
she needs to work at least 7 hours
to graph, draw a line at x=0 and shade to the right, make the line solid
Answer: 80 minutes
Step-by-step explanation:in the picture
Nadia saved 10% of $24.90.
10% x 24.9 = 2.49
answer: $2.49