Given.
Janie has 3$.
Earning per chore=1.20$
Target amount=13.50$
So; She must earn atleast 13.50$ to buy the CD.
No: of chores she does =c
So the inequality becomes as...
3+ c(1.20) ≥ 13.50
=> c(1.20)≥10.50
=> c≥1.5/1.2
=> c≥15/12
=> c≥ 5/4
=> c≥ 1.25
so The required inequality is c≥1.25.
And the Graph will be starting from 1.25(inculded) towards right to infinity.
Hope it helps...
Regards;
Leukonov/Olegion.
