What is the center of the circle having the equation (x-7)^2 + (y+2)^2=121

Find the simple interest earned to the nearest cent for each principal,interest rate,and time 735 7% and two and a half years

Ametal rod is 2/5 meters long. it will be cut into pieces that are each 1/30 meters long. how many pieces will be made from the rod?

Eliza wants to make $10,000 from her investments. she finds an investment account that earns 4.5% interest. she decides to deposit $2,500 into an account. how much money will be in her account after 14 years?