Find the sum of
7/3 and 11/26

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?