A number ,y, is five times another number x, the sum of numbers is 42.write the system of equations

Given the function f(x) = log base 4(x+8) , find the value of f^-1(2)

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document