Eight times the sum of a number and 4 equals 3

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer

What is the solution to the equation e3x=12? round your answer to the nearest hundredth

20.ju inces. which ordered pair is a viable solution if x represents the number of books he orders and y represents the total weight of the books, in ounces? (-3,-18) (-0.5, -3) (0,0) (0.5, 3)