20. Which expression represents the missing second step of simplifying the algebraic expression?

Step 1 4(x – 3y) + 6 + 5(x + 1)

Step 3 9x - 12y + 11

A. 4x - 3y + 6 + 5x + 1

B. 4x – 12y + 6 + 5x + 5

C. 12(x - y) + 6 + x + 5

D. x - 3y + 15 + x + 1

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

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

Oliver read for 450 minutes this month his goal was to read for 10% more minutes next month if all of her medicine go how many minutes will you read all during the next two months