If you travel 55 miles per hour, how many minutes will it take you to travel 1 mile? Please help!! :)

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

The square root of 9x plus 7 plus the square rot of 2x equall to 7