20 over 100 equal to 16 over x

4b + 21 = - 3 (b - 7) + 7b

I'm using double number lines. Martin bought 3 DVDs for $15.00 on Black Friday. At this price, how much would 8 DVDs cost?

What is the volume of a cylinder with base radius 3 and height 6? Either enter an exact answer in terms of or use 3.14 for at and enter your answer as a decimal. 3 6 cubic units

Ratio of girls to boys at a movie is 5:7 if there are 28 boys how many girls are at the movie?

How do I subtract 6 1/3 from 7 1/6?

How many total seats will the airline gain by purchasing three more of both the 737 aircrafts and MD-88 aircrafts? There is a chart too: aircraft seats 737 - 150 757 - 183 767 - 250 MD-88 142 777 - 268

Solving proportions decimals 8.9/44.5 = k/33.5

Ron finds 9 books at a bookstore that he would like to buy, but he can afford only 5 of them. In how many ways can he make his selection? How many ways can he make his selection if he decides that one of the books is a must? a. 3024; 1680 b.

64 percent rounds to the nearest

Evaluate the expression when a = 10. a/4 + 1/3