What common base can be used to rewrite each side of the equation
2
3
5
8

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

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?