The selling price of lumber at home depot is $3,170, percent markup on cost is 30%. calculate the actual cost. (round your answer to the nearest cent.)

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14

Find two numbers if their sum is 91 and the ratio is 6: 7?

Astudent was asked to find the square of 7x+3. the student quickly wrote (7x+3)^3= 49x^2+9. identify the student's error and provide the correct answer.