The coordinates of point T are (2,21). The midpoint of ST is (1.-9). Find the coordinates of point S.

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

About 9% of th population is hopelessly romantic. if 2 people are randomly selected from the population, what is the probability that at least 1 person is hopelessly romantic?