The temperature in my apartment measured 72 degrees on Friday. I went out of town and accidentally left the window open over the weekend. The temperature in the apartment measured 59 degrees on Monday. What was the change in temperature between Friday and Monday.

step-by-step explanation:

is only a line? i think so

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.