Betsie tried to solve an equation step by step.
3(a + 7) = -33
-33
a +7= -11
Step 1
a= -4
Step 2
Find Betsie's mistake.

Consider the diagram. which line segment has the same measure as st? rx tx sr xs

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.

Find the nonpermissible replacement for binthis expression.b2/5b +5