Um pintor utilizou 18 litros de tinta para pintar 60m2 de parede. Quantos litros de tinta serao necessários pra pintar 450m2,nas mesmas condições?

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?

Randy and trey take turns cleaning offices on the weekends. it takes randy at most 4 hours to clean the offices. it takes trey at most 6 hours to clean the offices. what is the greatest amount of time it would take them to clean the offices together? 2.4 hours 2.5 hours