25 students average 84 on a test. another group of 20 students averages 66. find the overall average.

Solve for x 2 + 2 * x = 10

Y=7 x=2 what is the value of x when y=21

Use the given data to find the minimum sample size required to estimate the population proportion margin of error 0.007 confidence level. 99 p-hat 0.255

Sandy had to make lemonade for a school picnic. she made 15.5 of lemonade. she must refill that container after filling 100 cups. how much lemonade was in each cup?

From the 12 albums released by a musician, the recording company wishes to release 3 in a boxed set. How many different boxed sets are possible, assuming that the order in which the albums are chosen for a boxed set is irrelevant?

20 + 20=4 x w. Where is w

Which of the following numbers are divisible by 3

Convert 247 minutes into the unit of hours.

How long will it take you to bike a distance of 108 miles at a speed of 24 miles per hour?

What's the LCM and GCF of 14 and 22