Find the ratio equal to the ratio given
12: 7

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22

Sally deposited money into a savings account paying 4% simple interest per year.the first year,she earn $75 in interest.how much interest will she earn during the following year?