80 students come to school in bicycle ir car, in total they come to school in 270 wheels

What is the GCF of 30 and 49?

Ari measured the density of quartz three times: 2.49 g/cm3, 2.56 g/cm3, and 2.72 g/cm3. The accepted value is 2.65 g/cm3. What is the percent error of Ari's average measurement?

Andy tells Jon 4=4. Jon says he is wrong. Explain who is correct

Length of a rectangle window is 5 3/4feet and it width is 3 1/2 feet what is the area of this window

What is the perimeter of a triangle with side lengths of 9 in, 7 in, and 13 in?

Write an equation with the solution x=20?

A sequence has a first term of 2 and a constant ratio of - 3/2 what are the first five terms of the sequence

A three-dice is a six sided dice with only the numbers 1, 2 and 3. The usual numbers 4, 5 and 6 are replaced by 1, 2 and 3 respectively. 4 three-dice (with sides labeled 1, 2, and 3) are rolled and the numbers face up on the 4 dice are recorded.

Judy is making scarves to give to her family as gifts. She needs to make 5 scarves and each scarf is 3.75 feet long. How many yards of fabric does Judy need to buy?

Find the margin of error for a 95% confidence interval for estimating the population mean when the sample standard deviation equals 100 , with a sample size of (i) 484 and (ii) 1764. What is the effect of the sample size?