Of the students in Grayson's class, 7 have been to San Diego and 11 have been to Dallas. 5 students have been to both San Diego and Dallas. How many students have been to San Diego or Dallas or both?

Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1