Only one triangle is able to be drawn with those measurements and angle
1/4n-8=1/4 would be first because it says less than so you switch it. then you put the 8 since it's in the same subtraction problem. Then the word "is" indicates the equal sign. and the n represents "a number" since it is unknown.
7 10 thousands is equal to 70 thousand
21 and 21
(it's a square)
and yes, a square is a rectangle
