Can Someone Help With The Following 3 Questions?

1. How much would a consumer pay for aT-shirt with a list price of $21 if the purchase was made in a province with a PST rate of 8%? Assume that the PST is applied as a percent of the retail price. Also assume that a GST of 5% applies to this purchase.

The consumer would pay $ ___ ?

1. Lisa's Home Income Tax business operates only during tax season. This year Lisa grossed $22,321 including GST. She also spent $5923 before GST on her paper and supply purchases. If Lisa is voluntarily registered forGST, how much does she owe the Canada Revenue Agency forGST?

Lisa Owes $___ ?

1. Express The Fraction As A Percent.

13/30 as a percent is __%