Dan had 42 books in his library. he bought several books at a yard sale over the weekend. he now has 58 books in his library. how many books did he buy at the yard sale? write a equation to solve each problem then solve the equation

Eric practiced piano and guitar for a total of 8 hours this week. He practice the piano for one fourth of that time. How many hours did Eric practice the piano this week?

Factor - 8x^3-2x^2-12x-12x-3

Trisha had the following seven distances (in feet) in the triple jump. 29, 30, 28, 32, 28, 31, 27 What is the approximate mean of her distances, rounded to the nearest tenth? 29.3 29 34.2 28

Convert 900 degrees to radians.

At a video arcade, the action video games this week cost $25, which is 125% of last week's price. What was its price last week?

Number 22. Find the x - and y-intercepts of 5y - 3x=15 A. x-int 5 Y-int 3 B. X-int - 5 Y-int - 3 C. X-int - 5 Y-int 3 D. X-int 5 Y-int - 3

It must exceed seven. x < 7 x ≤ 7 x > 7 x ≥ 7

What numbers are members of both the set of whole numbers and the set of integers?

What is the value of K? 1/2k + 6 = 4K - 8 A.-4 B. - 3 C. 3 B. 4

You received a $100 gift certificate to a clothing store. The store sells T-shirts for $12 and dress shirts for $21. You want to spend no more than the amount of the gift certificate. You want to leave at most $7 of the gift certificate unspent.