Can some one help me on this question linked ive put all my points in!!!

Answers:

a) 140, 57

b) Positive

c) 150 cm

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

1 + (6 / x - 1)

step-by-step explanation:

divide using polynomial division.