The sum of three numbers is 87. The third number is 2 times the second. The first number is 7 more that the second. What are the numbers?

A random sample of size 21 was taken from a normal population. the sample average was 9.87 and the sample sd was 1.17. at the significance level of 10%, what test should you use for testing whether the population mean equals 9.7?

Robert delivers papers every morning. On Sundays he has to deliver 67 papers and on each of the other days he only has to deliver 39 papers. How many papers does Robert deliver each week?

Which equation can be used to find two numbers such that twice the first equals three times the second and three times their difference exceeds twice their difference by 13?

A dinner plate has a diameter of 7 in approximately how many inches is a circumference of the plate

Find the slope for 2x-6y=24

How tall is a box that holds 200 cubic inches and has a 5 x 5 square bottom?

Which number should each side of the equation 4/5x=8 be multiplied by to produce the equivalent equation of x = 10? A - 45 B 15 C 54 D 5

An angle that has the circle center as its vertex

A Girl gets 2,000 gift toward a college education from her grandparents. How much will the 2,000 be worth in 17 years if it is invested at 7% and compounded quarterly

Write each percent as a decimal 89% 100% 0.01%