# Help me solve math problems

Free math problem solverThe free math problem solver below is a sophisticated tool that will solve any math problems you enter quickly and then show you the answer.I recommend that you use it only to check your own work because occasionally, it might generate strange results. Solve your math problems online. The free version gives you just answers. You do the math. Well, at least it should and most of the time it does. Visa and MasterCard security codes are located on the back of card and are typically a separate group of 3 digits to the right of the signature strip.American Express security codes are 4 digits located on the front of the card and usually towards the right.

Sergio and his fellow students decide to make and sell their version of Silly. A cardboard box is modeled by a rectangular prism 12 cm long by 8 cm wide by 20 cm high. I the box has no lid, what is the total surface area of the card.