Which expression is not equivalent to 20 (n - 5) A 20n - 5
B 20n – 100
C (n – 5) x 20
D 20 x n - 20 x 5

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

Joey is asked to name a quadrilateral that is also a rhombus and has 2 pairs of parallel sides.should be his answer