The ages of Amith and Sumith are in the ratio 2:3, after 15 years the ratio of their ages will be 3:4. Find their present ages?

Which expression is the factorization of x^2+10+21

Which of the following is the maximum value of the equation y=-x^2+2x+5 a. 5 b. 6 c. 2. d. 1

Julie begins counting backwards from 1000 by 2’s and at the same time tony begins counting forward from 100 by 3’s.   if they count at the same rate, what number will they say at the same time?