In a certain school, course grade range from 0 to 100. Adriana took 4 courses and her average course grade was 90. Roberto took 5 courses. If both students have the same sum of course grade, what was Roberto's

average

Issac drinks 8 glasses of water a day. he says he will drink 2920 glasses of water in a year that has 365 days. is the exact answer reasonable? explain

A sign say that the price marked on all music equipment is 30% off the original price. You buy an electrical guitar for the sales price of $315. What was the original price. And how much money did you save off the original price of the guitar.

If ac = x+3 and db=3x-19, find ac

John has 54 marbles. some are red and some are black. The ratio of the number red marbles to black are 7:2. How may more red than black are there?

A graphics company charges $50 per hour to create a logo plus $250 for the ownership rights of the logo. A private contractor charges $75 per hour to develop a logo plus a $100 supply fee.

Aaron bought a motor home for $50,000. If he later sold it for $10,000, find the loss as a percent of the cost price

In the United States 5 million Farmers provide food for 260 million people

What is the mode of the data set below? {15, 16, 20, 12, 18, 20, 17}

Find (-30) (-0.5). Select one: a. - 150 b. - 15 c. 15 d. 150

Eduardo counted the square tiles on the floor of his rectangular room the area of each tile is one square foot the floor has 6! rows of tiles and 7 tiles in each row what is the area of the floor of Eduardo's room?