Combine the like terms to create an equivalent expression 2r+1+(-4r)+7

In the diagram below, tan θ = sqrt 3. what is the value of m?

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply