12 1/8 = -3x + (-9 5/8)

how do i do this?

This is how I believe you answer the question

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315