Starting at the 6th floor, an elevator went down 1 floor, up 6 floors, and then down 4 floors. Find the number of the floor on which the elevator finally stopped.

Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?

In the rectangle below ac=30 units what is de

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much