WZ is the midsegment of the trapezoid UVXY. If XY = 5t - 49, WZ = 2t + 35, and UV = 100 - 90, what is the value of t?

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.

To describe a sequence of transformations that maps triangle abc onto triangle a"b"c", a student starts with a reflection over the x-axis.how should the student complete the sequence of transformations to map triangle abc onto triangle a"b"c"? plz

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.