The total area of two rectangles is 13 1/4 square inches. the dimensions of each rectangle are shown below: a: length = 2 inches = 2 1/2 inches and rectangle b: length = 2 3/4 inches. what is the width of rectangle b?

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula c= r/1.8 - 273, what is the temperature in celcius corresponding to r degrees rankine.

What are the relative frequencies, to the nearest hundredth, of the rows of the two-way table? group 1: a 15 b 45 group 2: a 20 b 25

X+y=-4 x-y=2 use elimination with adding and subtraction