When 5/8 of the books had been sold, there were only 309 books remaining. how many books were there originally?

Determine the number of ways a computer can randomly generate one or more such integers from 1 through 30. Two distinct integers whose sum is 27.

A cola company wants to test their cola against their biggest competitor's cola. They decide to randomly sample 150 people. The results from their survey show that 98 people out of 150 people prefer their cola to their competitor's.

F (x) = - x^2 + 1 for x = - 3 -4 4 -8 -9

An Olympic sprinter can go from a state of rest to 11 meters per second in 10 seconds. What is the average acceleration of the sprinter? a. 110 m/s² b. 110 m/s c. 1.1 m/s² d. 0.9 m/s

If you had a 15 foot ladder, how far away from the base of a wall would you have to put it to reach a window 12 feet up?

Solve the equation x to the 2nd power=0.81 a-none of them b-x=0.9 only! c-x=0.9 or x = - 0.9 d-x = - 0.9 only!

Ally sold 5 oven toasters and 3 rice cookers for $500. If a rice cooker cost $20 less than an over toaster, find the cost of a rice cooker.

Over which interval is the graph of f (x) = -x^2+3x+8 increasing

Does 0.15>0.105 yes or no

22x - y = - 23 (equation 1) 11x + 12y = 1 (equation 2) To find the value of x, you need to substitute in equation 2. The value of x is.