A set of three numbers with the greatest common factor of 13

What's (14+7) •8 = equal show work?

Solve the system x+3y=1; - 5x+4y=-5

Mr Ordonez gives his math students 34 quizzes during 17 weeks of school. If he gave the same number of quizzes each week, how many quizzes does Mr Ordonez give his students every week?

Matthew earns $8.50/h working at a grocery store. He receives a raise of 15% per hour. Which expression represents how much money Matthew will earn per hour after the raise?

A bag contains the following marbles: 4 black marbles, 14 blue marbles, 8 brown marbles, and 20 green marbles. What is the ratio of blue marbles to green marbles? Express your ratio as a fraction or with a colon

Use the distributive property to solve 3,894 x6 = ?

How do I solve 4^x=19?

A coffee stand sells cups of coffee for $6 and cups of tea for $3. Tuesday, a total of 75 cups were sold, and the total money collected was $312. How many cups of coffee and how many cups of tea were sold?

Charles earns an annual salary of $61,870. If he is paid weekly, much would his pay be each week?

Social health can be defined as one's ability to argue with others. True or false