Asail is in the form of a right triangle. the angle at its lower edge is 57. which is the size of the angle formed at the top of the sail?

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

How many lines can be drawn through points j and k? 0 1 2 3

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?