1. Simplify the expression 7^4. (1 point)

2. What is an expression for the sale price of a bracelet that has been discounted 60% from its sticker price? Evaluate the expression for an original sticker price of $90. (1 point)

3. Simplify the following expression: (7 + 5b) + 1 (1 point)

4. What is the value of x/y when x = 9/4 and y =3/5 ? (1 point)