If a person is randomly selected from the data set summarized in the histograms above, find the probability that the person is a female or weighs less than 140 pounds.

The quadratic function h(t) = -16.1t^2 + 150 models a balls height, in feet, over time, in seconds, after its dropped from a 15 story building. from what height in feet was the ball dropped?

Negative 5 1/12 + negative 4 1/4 + 6 3/4

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable