Which expression is equivalent to 25a+5b-13

Which of these is the solution to the system of equations? Y=12x-18 Y=13x-18 Is it a. (-18,0) B. (0,-18) C. (1,-6) D. (1,-5)

More than 100 million people around the world are not getting enough sleep; the average adult needs between 7.5 and 8 hours of sleep per night. College students are particularly at risk of not getting enough shut-eye.

A bag of marbles contains 5 red 3 blue 2 green and 2 yellow marbles. What is the probability that you choose a blue marble and then another blue marble, assuming you replace the first marble? (in the answer as a fraction)

How many solutions does the system have? y=x - 4 and y = x - 3

30% of coin in jar are pennies and there's 24 pennies how baby coins are in the jar

5 5/8 + 1 1/2 equal to

How much does an aluminum can weigh

A bacteria colony doubles in 8 hours. How long does it take to triple? Use N=No2^t/T

Solve for v. (v-1) ^2 = 2v^2 - 5v - 17 If can be more than one solution or no solution

Azand sold some books at $44 each and used money to buy some concert tickets at $60 each. He had no money left over after buying the tickets.