What value from the set {4, 5, 6, 7, 8} makes the equation 4x + 3 = 23 true? Show your work

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.

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)