A recent survey suggests that 85% of adults know what Twitter is. How many adults should you survey in order to be 90% confident that your estimate is within 5% of the true population proportion?

Stephen's glass holds 450 milliliters of milk. Farrah's glass holds 2/5 as much milk. How much milk does Farrah's glass holds?

Ms. Tod has 17 softballs. Her gym class makes 3 teams. Ms. Tod gives the teams as many softballs as she can, and each team gets the same number of softballs. How many softballs does Ms. Tod give each team? How many softballs are left?

Is 9 bigger than negative 10?

21. Identify the minimum, first quartile, median, third quartile, and maximum of each data set. Then draw a box & whisker plot. a. File sizes: 54, 100, 84, 124, 188, 48, 256 b. Camera prices: $280, $220, $224, $70, $410, $90, $30, $120

Which letter has rotational symmetry? O, C, K, or T?

A store had 800 T-shirts in stock for a weekend sale. T-shirts are sold in packs of 4 each. During the sale, 20 packs of T-shirts were sold on Saturday, and 70 more packs were sold on Sunday.

What is the slope for the following equation 9x + 2y = 9

How is 3*7 and 6*7 related

The weight of the candy that Eric collected was one thousand six hundred thirty-four grams more than the weight of the candy Timothy collected. Timothy collected three and eight hundred forty-five grams of candy. how much candy did Eric collect?

What is (-4) to 5th power simplified