A student solved the problem below but made an

error.

- 3x = 12

+3 + 3

x = 15

Suppose that you can only work a total of 42 hours or less each week at your two jobs, and that your job as a cashier pays $8 per hour and your sales job pays $11 per hour.

Decreasing - 5 times a number by 18 is equal to decreasing 9 times the number by 25

Which ordered pair is a solution of the equation? 2x+3y=10?

a protein bar has 15 grams of protein in a 40 gram bar. protein bar b has 20 grams of protein in a 60 gram bar. Which bar has more protein per gram.

What is the least possible sum of the digits displaying the time on a 12 hour digital clock?

Rearrange the following group of numbers from smallest to largest. 2.7, 2.06, 2

Is it possible for the area of a figure to change after it is translated?

The larger of two number is 12 more than smaller number. If the sum of the two numbers is 74, find the two numbers

How can you explain x - 0.30x = 8.96?

Website W receives orders for its products every day. What is the Standard Deviation of the number of orders that Website W received daily for the past 5 days?