In a bag of 50 marbles, 15 marbles are green or red. What percentage of marbles are green or red?

Enter the missing values in the boxes to complete the ratio table.
Part Whole 50

Part Whole 100

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?

You are cycling around europe with friends. a cycling festival is starting soon in barcelona. it will take 4.5 hours to cycle there. how many minutes in total is this?

For the equations below which statement is true ?