Alex buys 5.5 yards of blue fabric and 4.5 yards of red fabric. if the blue and red fabric cost the same amount per yard, and alex pays $74 for all of the fabric, what is the cost per yard?

Click on the graphic until you find the right quotient. (36xa - 30xb) ÷ (-6x2)

Afruit stand has to decide what to charge for their produce. they need $10 for 4 apples and 4 oranges. they also need $15 for 6 apples and 6 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

James adds two numbers a + b. sally adds the same two numbers but reverse the order b + a what property of addition assures us that james and sally will get the same sum