Convert the angle 0 = 100° to radians.

In a column proof the right column states your reasons

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me

Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earned $75 in interest. how much interest will she earn during the following year? show your work and explain your reasoning in the space provided below.