Solve the following system of equations by substitution. Which of the following is the solution?

If the perimeter of the garden is 37 ft. the width is x and the length is 15 ft. what is the width of the garden in feet?

Henry's butcher shop uses an electronic scale that measures to 1/100 of a pound. which is the most accurate measurement based on the limitations of the scale that might be found on a package of meat sold by henry?

Find the vertex for the parabola given by the function ƒ(x) = −3x2 − 6x.