In mrs phillips math class the ratio of boys to girls is 4 to 2. if there are 51 girls in math class, how many boys are there?

Shryia read a 481 -page-long book cover to cover in a single session, at a constant rate. after reading for 1.5 hours, she had 403 pages left to read. how fast was shryia reading? pages per hour how long did it take her to read the entire book? hours plz i realy need this

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths

Don't know how to find x given these segment lengths