The ratio of boys to girls at a movie is 8:7. if there are 21 girls, how many boys are at the movie?

Solve for w (4w-5) (7-w) = 0

9x+4=7 solve equation?

Find the number of distinct triangles with c=3, b=5 and B=85 degrees

2x^2+6x-8 and x+3 in standard form

While shopping you know the average price for a CD is 8 including tax you have 112 in your pocket how about how many CDs can you buy

The claim is that the proportion of peas with yellow pods is equal to 0.25 (or 25%). the sample statistics from one experiment include 480 480 peas with 127 127 of them having yellow pods. find the value of the test statistic.

90% of students at a university use a backpack, while the rest do not. Of all the students, 50% carry their laptops with them and 5% carry neither a backpack nor laptop. What percentage of students carry their laptops and use a backpack?

Brianna's teacher asked her which of these three expressions are equivalent to each other 9x - 3 x - 4, 12x - 4, 5x + x - 4

I am the only number between 41 and 49 that has 5 as a factor. what number am i?

Solve the proportion: A printer can print 11 color pages in 2 minutes. How many color pages can the printer print in 7 minutes?