Write the fractions with the same denominator

3/4= 4/5=

How do you convert 1.27 to a percentage

What is the greater volume 72 quarts or 23 gallons

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.