2016-10: Order Total

Suppose you have a numeric vector that is the list of prices for a set of retail products.

You also have a numeric vector that is the number ordered of each product.

Write code that takes as its second argument a vector of prices and as its first argument a numeric vector that indicates the number ordered and returns the total cost for the order.

Examples

Implementation

You can also run the tests via ⌘/shift + enter