Camille is attending a fundraiser. she pays for her admission and buys raffle tickets for $5 each. if she buys 10 raffle tickets, then she would spend a total of $135 at the fundraiser. the number s of dollars camille spends at the fundraiser is a function of r, the number of raffle tickets she buys. write the function's formula.

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.

Which best explains why this triangle is or is not a right triangle ?