The reduce feature on a copy machine is set at 84%. The picture being copied is 4.5 inches wide. What will be the width of the reduced picture

What expression is equivalent to 42x-56y

The median of a data set is the measure of center that is found by adding the data values and dividing the total by the number of data values that is the value that occurs with the greatest frequency that is the value midway between the maximum and minimum values in the original data set that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude

3x + 4y = 5 x- 3y = -7 solve by substitution