no links pls! Percents- Use the ratio table to solve the percent problem. Part Whole 12 20 What percent is 12 out of 20? ? 100. a.6% b.12% c.20% d.60%​

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

$450

step-by-step explanation:

first, you have to multiply 150x2=300

next, you have to add 150+300= 450

c

step-by-step explanation:

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step-by-step explanation: