Simplify and solve each of the following equations. a. d + d + 10 = 50

Julia studied math for 3 1/3 hours during the 4 days before her last math test. What was the average amount of time she studied each day? For this question I got 38.6 but that's really off. Can someone tell me how I got this wrong in words?

What function has a range of y<5

A librarian is expanding some sections of the city library. He buys book at a special price from a dealer who charges one price for any hardback book and another price for any paperback books. For the children's section, Mr.

A stretch of highway that is 12 1/4 kilometers long has speed limit signs every 7/8 of a kilometer. How many speed limit signs are on this stretch of highway?

Or a two-sided confidence interval with 13 observations, σx unknown, and α = 0.10 the (critical) value is:

Determine whether it is possible to draw a triangle with the given side lengths. 7feet, 5feet and 2 feet

Find the circumference of a circle whose area is 60 pi cm2

How do you write quadratic equations in standard form?

When 250 students were interviewed, 96 of the students thought USC was the best school in the nation. The probability that one of those 250 students does NOT think that USC is the best school in the nation is. (leave answer as a fraction)

How much greater is 500 then 5