Is a simple random sample is valid (sometimes, always, or never)

Which mixed number is greater: 5 7/24 or 5 5/16? Why?

What is 32/36 simplified

Gabby has 10 feet of ribbon. She used 4 feet of ribbon. How many yards of ribbon are left? (3 feet = 1 yard) A. 1 yard B. 2 yards C. 6 yards D. 18 yards

Solve y = x + 6 for x. A. x = y + 6 B. x = - y + 6 C. x = y - 6 D. x = - y - 6

Manuel traveled 31 hours nonstop to Mexico, a total of 2,300 miles. He took a train part of the way, which averaged 80 mph, and then took a bus the remaining distance, which averaged 60 mph. How long was Manuel on the train?

Solve: (6x^3 - 1x^2 + 1) divided by (2x + 1) a. - 3x^2 + 2x - 1 b. 3x^2 - 2x + 1 c. - 3x^2 + 2x - 1 d. 3x^2 2x - 1

113, 183, 479, 120, 117 What is the mean, median and mode? Make sure to label each answer. Round any decimals to the tenths place. Would mean, median or mode be the best measure to describe the data?

What is the volume of a cylinder with a height of 11.8 cm and a base with a radius of 8.3 cm, to the nearest tenth of a cubic centimeter?

Thomas earned $1,235 last week. He had $382.85 taken out in taxes and insurance. What percentage of his pay was taken out in taxes?

A=25, b=12, c=4, d=4: a + (b+c). d