Trina has two brothers. one brother is 7 years older then trina and the other is 7 years younger the trina. the product of her brothers age is 51. how old is trina?

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?

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why?

How does reflecting or rotating a figure change the interior angles of the figure?