You multiply all the numbers by 2 to get rid of the fractions. This would leave you with k + 1 = 6. Then you subtract 1 from both sides to get k = 5.
I thought it was 100 because 5x2=10 10 to the 2nd power is 100 because 10x10=100
Answer: 6 book set = 69.95
Step-by-step explanation:
6 separate books = 14.95 = 6x14.95= 89.70
69.95<89.70, 6 book set is a better deal
