Please help, I will check if it is wrong so please do not answer just for points.

With these: 18/36 = 1/? missing number change 1 5/8 to improper fraction. change 19/5 to a mixed number.

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

Josie buys a pair of boots that retail for $52.00 dollars, however they are currently on sale for 25% off how much does josie pay for the boots if there is also a 6% sales tax on them