Lizzie has volunteered 20 hours at her town library. from now on she plans to volunteer 5 hours per week. write an algebraic expression to represent the total number of hours she will volunteer. write a verbal model. choose a variable for unknown quantity

You can find the constant of proportionality by finding the ratio of

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 statements are true about additional information for proving that the triangles are congruent check all that apply