There are 25 students in a class, 40 percent of whom are girls. If the average
(arithmetic mean) weight of the girls is 120 pounds and the average weight of
the boys is 150 pounds, what is the average weight in pounds of the students in
the class? *

When you are making a circle graph by hand, how do you convert a number for a part into its corresponding angle measure in the circle graph? when you are making a circle graph by hand, what should you do if one of your angle measures is greater than 180°?

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

Write the expression as a single natural logarithm. 2 in a - 4 in y