4x + 3y = -26
x-3y =-14

The measure of an angle is 117°. what is the measure of a supplementary angle?

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with

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?