Which of the following equations has NO solutions? a+2=a−2A plus 2 is equal to A minus 2 a+a=2A plus A is equal to 2 a=−a+2A is equal to negative A plus 2 a+2=a+2

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

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.