Nicholas wants to buy a laptop that costs $485.30. He has $186.80 in savings. How much does he have to save each month if he wants to buy the laptop in three more
months?
F $99.50
G $92.30
H $87.50
$90.50

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