At 6: 00 a. m the was 25 f. at 9: 00 p. m the temperature was -13f, what was the difference in the temperature?

Average acceleration: i have no idea how to do this.

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b

Oliver had $50 on the day before his birthday. after he recived some money for his birthday , he had $75. write and solve eqaution to find how much money oliver received for his birthday. x+50=75