An arts academy requires there to be 3 teachers for every 57 students and 5 tutors for every 50 students How many students does the academy have per teacher? Per tutor? How many tutors does the academy need if it has 130 students?

The area of a rectangle is 15+5y square feet. which of the following expressions could be the length of the sides of the rectangle, in feet a. 5 and 3y b. 5 and 3+y c. 5 and 5+y d. 3 and 5+3y

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?