For the function f(x)=x^2-x determine f(x-2) in simplest form

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom

Maria found the least common multiple of 6 and 15. her work is shown below. multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, . . multiples of 15: 15, 30, 45, 60, . . the least common multiple is 60. what is maria's error?

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.