The value of y is directly proportional to the
value of x. If y = 40 when x = 100, what is the value
of y when x = 150.

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?

41/17 as a decimal rounded to the nearest hundredth

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?