Mr. Swanson needs new strings for his 19 violin students. Each violin has 4 strings. Strings are $2 each and come in sets of 4. Mr. Swanson decides to buy 2 sets of strings for each student.

For each sentence below, find the value of x that makes each sentence true. (515) 5 = 25* x= (813)2 = 4* x=

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?