Question 8 of 12, Step 1 of 1 Correct
A student missed 45 problems on a mathematics test and received a grade of 39 %. If all the problems were of equal value, how many problems were on the test?

Student price tickets to a movie are $1 and non student tickets are $2 . 350 tickets are sold and the total amount made is $450. there were 250 student tickets sold . true or false .

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Can someone, me with this.i really need with this