What would be the best way to select an unbiased population-sample that represents the following topic: what is the favorite sport in mr. smith's class? a. ask four people on your soccer team. b. ask, "do you like silly soccer, or exciting football? " c. ask people reading at recess. d. randomly survey at least 20 people in the class.

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

entering that problem on the tube might get you an answer