cynthia besch wants to buy a rug for a room that is 21ft wide and 34ft long. she wants to leave a uniform strip of floor around the rug. She can afford to buy 510 square feet of carpeting. What dimensions should the rug have?

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

3x + 4y = 5 x- 3y = -7 solve by substitution

In a certain city, the hourly wage of workers on temporary employment contracts is normally distributed. the mean is $15 and the standard deviation is $3. what percentage of temporary workers earn less than $12 per hour? a. 6% b. 16% c. 26% d. 36%