Jose tried to simplify the expression below. Is he correct? Explain.
54+ 5= 5%
5
= 14
=1
1) Yes. He is correct because five divided by five is equal to 1 and 1 to the
fourth power is equal to one.
2) Yes. He is correct because any number divided by itself is equal to 1 and
1 to the fourth power is equal to one.
3) No. He is not correct because five to the fourth power is twenty and
twenty divided by five is four.
4) No. He is not correct because five to the fourth power divided by five to
the first power is equal to five to the third power which is 125.
I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )