[PLEASE HELP ASAP] What is the standard angle of a reference angle of 30° in Quadrant II?
A. 150°
B. 135°
C. 210°
D. 120°

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

step-by-step explanation:

left be aligning the decimal points is required to not required see the number of digits to the right