What is (f + g)(x)?
f(x) = -4x + 2
g(x) = -2x

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.