What is the value of the expression 6m + m - 4(-2m + 1 - m) when m = -8

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

The diagram shows corresponding lengths in two similar figures. find the area of the smaller figure. a. 14.4 yd2 b. 24 yd2 c. 26.4 yd2 d. 28

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red