In a class of 145 students 92 are taking math 73 are taking science and 51 are taking both math and science. One student is picked at random. Find the probability.

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18