Twelve students in a class average 70% on a certain test. eighteen others average 80%. what is the overall average of the thirty students as a percent

What is the original price of a baseball bat that has now been discounted to $189

Find circumference of circle with 22 cm diameter

It takes Susan 3 hours to fix 2 broken cars and it takes Joseph 4 hours to fix 3 broken cars. If they work together how long will it take them to fix 17 broken cars?

Chad built a scale model of a statue. He built the model 7 inches tall to represent the actual height of 15 feet. Which equation below represents the relationship between the actual height (a), in feet, and the height of the model (m), in inches?

Scottish researchers compared rates of depression between 94 undergraduates who regularly kept diaries and 41 students who did not. They found that people who kept diaries were more likely to have depression than those who did not.

Juan buys 4 cans of soup. Each can weighs 7/8 of a pound. What is the total weight of Juan's cans of soup?

What would you call a triangle where one angle is 90° and none of the sides are the same?

Car #1 travels 105 miles in 5 hours. Car #2 travels 252 miles in 3 hours. What is the speed of Car #1 in miles per hour?

Suppose there are 21 students in your class. If the teacher draws 2 names at random, what is the probability that you and your best friend will be chosen. The options are 2/21, 1/20, 1/105 and 1/210

Scientific notation of 0.00000008