Find the derivative of the function. assume a and b are not zero

Carlos by 24 mi and ran 6 miles what is the ratio of the distance carlos ran to the distance he biked

What is the sum of 25x + 15y and (-18x - 6y)

Points j and k plotted on the coordinate grid are two vertices of rectangle jklm rectangle jklm has an area of 7 square units point j is located at 2,1 and point k is located at -5,1 each vertex of the rectangle is located at a point that has integer coordinates. what is the perimeter of rectangle jklm? (need answer asap)