A store pays $20 for a set of headphones. The store sells the set of headphones for $70. Your classmate says that the markup is 350% because$70/$20=3.5 Is your classmate correct?

the temperature started at - 65 degrees. It decreased at a constant rate of 45 degrees every hour. What is the y-intercept (b) for this situation?

Peyton spent 60% of her money to buy a new television. If the television cost $300, how much money did she have?

The formula D = 393t + 5680 can be used to approximate rhe tital average credit card debt in a U. S. household (in dollars) t years after 1995. Use this formula to predict what the total average credit card debt will be in the year 2027

Of the 27 players trying out for the school basketball team, 8 are more than 6 feet tall and 7 have good aim.

Find the volume of a right rectangular prism with a length of 3, a width of 5, and a height of 6. a. 14 cubic units b. 21 cubic units c. 90 cubic units d. 196 cubic units

Two equations are given below: m + 4n = 8 m = n - 2 What is the solution to the set of equations in the form (m, n) ? A.) (4, 6) B.) (2, 4) C.) (0, 2) D.) (6, 8)

There is a population of 50,000 bacteria in a colony. If the number of bacteria doubles every 120 hours, what will the population be 240 hours from now?

Eric is preparing for a regional swim meet that is a month away. He swims the same distance and clocks his best time on several different days.

Jason has 12 quarters. For every quarter, Jason also has a game token worth c cents. Jason knows the total value of his quarters and tokens is 420 cents. Which equation can Jason use to determine the value of the tokens?

Describe the ratio of gray tiles to white tiles in 3 different ways