Evaluate the expression (11/7)(5/3)(3/1)

Consider the function represented by the equation 1/2 j + 1/4 k equals 3 which shows the equation written in function notation with j as the independent variable

Evaluate cos2θ for cosθ = square root of 3/2

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?