Write a formula for the function and use the formula to find the indicated value of the function. a) the surface s of a cube as a function of the length of the cube's edge e; the surface area of edge length 5ft. b) the volume v of a sphere as a function of the sphere's radius r; the volume of the sphere of radius 3cm.

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The school that imani goes to is selling tickets to the annual dance competition. on the first day of the ticket sales the school sold 7 adult tickets and 5 child tickets for a total of $96. the school took in $40 on the second day by seling 3 adult tickets . find the price of an adult ticket and the price of a child ticket. solve by using substitution elimination college prep algebra math heres the 2 equations i came up with 7x+5y=96 and 3x+2y= -40 show all workiv be stuck on this.

How can you tell when x and y are not directly proportional?