Find the least common multiple of 9, 6, and 2.

18

Step-by-step explanation:

This is because when you find the prime factors, you can take out the ones that they have together.

In this case:

9 - 3 * 3

6 - 3 * 2

2 - 2

So notice that each number has a maximum of 2 3s and 1 2, thus, you can multiple 3 * 3 * 2

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