What does (5^-3) ^-3 equal

Solving systems by substitution: y=5x-10 y=3x+8 I dont underatand how to solve it

Fnd the quotient 70:7

Ou are mailing a package that weighs 5 pounds, and sending it first class. The post office charges $0.44 for the first ounce, and charges $0.20 for each additional ounce. How much is the total cost to mail this package?

The sum of the angle measures of a polygon with n sides is 2880. find n

Factor completely: 9x to the 2 + 9x - 4

The ribbon costs $3.79 per foot. How much does it cost to make each bow?

In a school 5/9 of the number of pupils are girl. Write down the number of girls as a ratio to the number of pupils in the school

Walter practices piano for 1/4 hour, 1/2 hour, or 3/4 hour every other day. If a line plot shows two X's above each value of time, what is the total amount of time Walter has spent practicing? i came up with 2 1/4 hours

A pair of dice is rolled. What is the probability that a 3 shows up on the second one?

3. Solve this inequality: 3b-7<32 O A. b<39 B. b<5 C. b< 13 D. b<8.33