The grass in jamie's yard grew 16 centimeters in 10 days. it was growing at a constant rate. how many days did it take the grass to grow 1 centimeter?

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

The rectangle shown has a perimeter of 108 cm and the given area. its length is 6 more than five times its width. write and solve a system of equations to find the dimensions of the rectangle.

Two numbers have a sum of -19. one number is x. what expression represents the other number?