find the 16th term of the arithmetic sequence whose common difference is d=8 and whose first term is a↓1=3

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

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.

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.