Blake eses red beads and white beads to make key chains. He wants to know how many white beads he needs when he uses 21 red beads. Blake thinks he needs 70 white beads because
3 x 7= 21 and 10 x 7 = 70

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

Use the distributive law to multiply. 3(4x + 5y + 6)

If there are 3.281 feet in 1 meter, how many inches are in one centimeter