The volume of a cube is increased from 27 cubic centimeters to 31.617 cubic centimeters. Using differentials determine:
(a) By approximately how many centimeters does the side length of the cube increase?
(b) By approximately how many square centimeters does the surface area of the cube increase?
(c) By approximately what percentage does the surface area of the cube increase?

Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

Solve for x and y a x= 13.3 y= 16.7 b x= 23.3 y= 12.5 c x= 7.5 y= 16.7 d x=7.5 y= 12.5