Suppose a college surveyed its students and found that two-thirds of them sleep at least seven hours each night. on a campus of 918 students, how many students could be expected to sleep at least seven hours each night?

From 1960 to 1980 the consumer price index increased from 29.6 282.4 if a pound of grapes cost $.14 in 1960 and the price of grapes increased at the same rate as the consumer price index from 1960 to 1980 by approximately how much did the price of a

The flagpole casts an 8 ft shadow as shown in the table. At the same time, the oak tree casts a 12 ft shadow. How tall is the oak tree

In order to get an A in science, Jack must get at least a 92% on his next test. If test has 30 questions, what is the minimum number he must correctly answer?

Write an expression using the product of 7*63

Find the size of angle yzx give your answer to 3 significant figures 7.5cm and 22.3cm

Peter noticed that his house# is divisible by both 72 and 112. 1) What's the smallest integer that his house number could be? 2) If the house number is between 3000 and 4000, what's the house number?

On Saturday, Enrique charges $2 for every 1/6 hour he spends running errands. He earned $50 last Saturday. He picked up dry cleaning for Mrs. Abel for 4/6 hour, ran to the post office for Mr.

X - 3 - 2 (6 - 2x) = 2 (2x - 5)

Find the value of "r" so that the line through (2,-3) and (-4, r) has a slope of - 1/2

A white label wrapped around a rectangular box with square bases covers 80 percent of the lateral surface area of the box. Find the length x of the box.