Dave took an exam with 60 questions. He answered 42 correctly. What was his grade for the exam? Write the grade as a percent.

The variable z is directly proportional to x, and inversely proportional to y. when x is 4 and y is 13, z has the value 1.2307692307692. what is the value of z when x= 9, and y= 20

The tile along the edge of a triangular community pool needs to be replaced? ?

£100.80 divided by 14 equals 7.2 how would we put this as money