What terms can be combined with 4b? Select all that apply. 14ab
73a2
3a2
14a
4a
100
4b2
16b
5a3
17
3b
5ab

In pqr the obtuse angle is 105 and the shorter sides measure 4 and 7 units rounded to the nearest tenth what is the area of triangle pqr

Ahigh definition tv cost $800 with a down payment of 2/5 of the cost. how much is left to pay, in dollars after the down payment has been made?

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.