How to convert equations into y=mx+b form?

I am in the 6th grade and I dont know how to get the answer to this problem: Bella is making cranberry juice.

What is the value of m? 13m = 12 - m A. 3 B. 4 C. 9 D. 12

Is 2/5 or 3/7 closer to the decimal 0.5

A motorboat traveling with the current went 80 miles in 4 hours. Against the current, it took 5 hours to travel the same distance. Find the rate of the motorboat in calm water.

Beginning in the upper left corner of a spread sheet, where would you look to find cell C6? Three rows down and six columns right. Six rows down and three columns right. Three columns down and six rows right. Six columns down and three rows right.

How to find the x-intercept of a linear equation of y=6x-9

How will adding the value 50 affect the mean and median of the data set 8, 10, 12, 18, 22? A. The mean will increase more than the median. B. The median will increase more than the mean. C. The mean and median will increase by the same amount. D.

Goran's gas tank is 1/3 full. After he buys 3 gallons of gas, it is 1/2 full. How many gallons can Goran's tank hold?

Explain why this is or is not a probability distribution. x 1 2 3 4 P (x) 0.2 0.1 0.4 0.2

When would half of one pizza be the same amount of pizza as half of another? When wouldn't it?