Number that has the same value as 80 tens

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

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 candy store is having a 30% off sale. emma is going to buy $7.50 worth of candy.how much will she pay after the discount