On a school field trip, the school requires that there are 6 teachers for every 90 students. if 135 students attend the trip how many teachers are needed? write and solve a proportion showing your work.

9 teachers are needed because each group of 15 students has a teacher. if i'm correct, what is the proportion for this? ?

Frank has $66.50 in his account on sunday. over the next week, he makes the following changes to his balance via deposits and purchases: day debit ($) credit ($) monday 60.33 80.75 tuesday 54.45 wednesday 49.20 15.00 thursday 35.40 friday 16.85 75.00 saturday 80.56 on what day does frank first get charged an overdraft fee? a. wednesday b. thursday c. friday d. saturday select the best answer from the choices provided a b c d

Ricardo ran the 400 meter race 3 times his fastest time was 54.3 seconds his slowest time was 56.1 seconds if his average time was 55.0 seconds what was his time for the third race

Which of the following are accepted without proof in a logical system? check all that apply.