Use the unit circle to find the value of tan (-180º).

B. tan (-180°) = 0

Step-by-step explanation:

Tangent is the ratio of opposite to adjacent to an angle

From the unit circle; the opposite to our angle -180° is 0

The adjacent along the x-axis is 1

Therefore;

Tan (-180°) = 0/1

              = 0

Therefore; Tan (-180°) is 0

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315

i think the answer is c sorry if it's wrong