Thirty percent of Ms. Bosworth's class earned A's on their last test.
If 21 students earned an A, how many students are
in Ms. Bosworth's class?

The table above shows approximate conversions from gallons to liters. what is the value of x?

The poll report includes a table titled, “americans using cash now versus five years ago, by age.” the age intervals are not equal. why do you think the gallup organization chose the age intervals of 23–34, 35–54, and 55+ to display these results?

Find the probability that -0.3203 < = z < = -0.0287 find the probability that -0.5156 < = z < = 1.4215 find the probability that 0.1269 < = z < = 0.6772