5.12% means
5.12/100 = 0.0512 (each year)
PreOwned Vehicle Cost = 31,100
For 5 years simple interest, the value would be:
31100 * 0.0512 * 5 = $7961.6
Total have to pay: 31,100 + 7961.6 = $39,061.6
Answer:

=-4/-12=1/3 is your answer
Required expression is x/9 - 7
4(x+5)+6=2(2x+3)
4x+20+6=4x+6
4x+26=4x+6
Get letters on left...so subtract 4x from right and do same to left
26=6
no solution because 26 does not equal 6
A=3,500×(1+0.011÷12)^(12×4)
A=3,657.36
Interest earned
=3657.36-3500=157.36