Fred bought 6 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are now only 29 cards left. How many cards did Fred start with?

A cube of side 10 cm is melted down and made into ten identical spheres. Calculate the surface area of one of the spheres.

Trensie is flipping a weighted coin where the probability of landing on tails is 1 / 3. If she flips the coin two times, what is the probability that she gets heads both times?

Solve the formula for c. show your steps. p = r - c

Which number is greater 0.3 or 0.39

In how many ways can 6 bicycles be parked in a row

Marianna wants to buy a new tennis racket that costs $57.50. She has $8 and plans to save $4.50 each week. How many weeks will it take her to save the money?

Select the expression that equals-3 - (-5). A - 3 + (-5) B - - 3 + (-5) C - - 3+5 D - 3+5

X and Y are independent random variables. X is normally distributed with mean 1 and variance 1. Y is normally distributed with mean 3 and variance 5. What is the variance of Y - 2X?

Simplify - 2/3 - 3/5.

Alive, Kathy and Sheila work as medical assistant at valley clinic. Alice has work 8 years longer than Kathy. Kathy has worked half as long as Sheila. If Sheila has worked at the company for 10 years how many years has Alice worked there?