Ninenine of the 100100 digital video recorders (dvrs) in an inventory are known to be defective. what is the probability that a randomly selected item is defective?

Gary lost 17 pounds while on a diet, but gained 8 pounds back. Which number is the additive inverse of the change in Gary's weight?

Y = 3x2 + 2 What is the domain? What is the range?

jasmine had 11 friends over at her house. everytime the doorbell rang 2 more friends arrived. the doorbell rand 3 times. how many friends did jasmine have altogether

Joel gives 1/3 of baseball cards to his sister. Write a fraction that is equivalent to 1/3

Nora spent 6 minutes on the phone while routing 3 phone calls. If she routes 7 phone calls, how much time will Nora have spent on the phone in total? Assume the relationship is directly proportional.

Which property is shown? If m ABC = m CBD, then m CBD = m ABC reflexive property substitution property symmetric property transitive property

How do you solve 4y^-3-x^2y^-1?

A species' population dropped from 2000 in the year 2000 to 1200in the year 2011. Find the percent decrease in its population

How many solutions are there in the equation below 8x+11=8x+8

A gym teacher has $250 to spend on volleyball equipment. She buys 4 volleyball nets for $28 each. Volleyball cost $7 each. How many volleyball can she buy?