If two thirds of the barrels shown need to be painted how many barrels will be painted ?

Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it.how many multiple-choice questions are on the test?

Describe what moves you could use to create the transformation of the original image shown at right

Find two numbers if their sum is 91 and the ratio is 6: 7?