Which student's work is correct? Explain please Wendy
-20 = x + 7

-20-7=x/2+7-7
(2)(-27=(2)(x/2)
X=-54
Or Ben
-20=x/2+7
(2)(-20)=(x/2+7)(2)
-40-7=x+7-7
X=-47

In the 30-60-90 triangle below side s has a length of and side r has a length

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

32a³b² 8ab² simplify the following expression.