M stands for the slope of the line and b is called the y-intercept of the line
55% if the percent is out of 100%. in which most weather statisics are out of 100. in which you take 100-45= giving you 55%
Answer:
Translation (moving the figure) will map figure 1 onto figure 2 and then after this , dilation by a scale factor of "2"
7/21 or 1/3rd, it's just a ratio of white to all, there's 7 white straws and 21 in all, then you can simplify it down to 1/3rd.