Find the value of x. 12.5, -10, -7.5, x; the mean is 11.5

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

Adiverr from the university of florida women’s swimming and diving team is competing in the ncaa zone b championships

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