What is the rate of change of the area of a circle with respect to the radius when the radius is r equals 4 in. r=4 in.?

Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?

The bake stars picked 907 apples last weekend at a local orchard they made caramel apples and sold them in the bakery in trays of 6

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined