Eleven more than twice a number is 18. find the number.

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.

Astudent showed the steps below while solving the inequality |x-4|< 1 by graphing.

What is the quotient of 3x^4+22x^3+37x^2-7x+10