Using Drracket language

(50 points) Answer the following questions according to TOYS structure:

(define-struct TOYS (type quan price))

TOYS is a structure like :(make-TOYS string number number)

type is type of toy and can be one of:

plastic

metal

coton

quan is the quantity of toys

price is price of toys

Design a function named numorPlastic that takes list of toys and find the number plastic toys Contract: nunOrPlastic: LOTOYS number

Design a function named priceOfPlastic that takes list of toys and find the total price of plastic toys. Contract priceOfPlastic: LOTOYSnumber total price)

Design a function and priceListOfPlastic that takes list of toys and produce a list of prices of plastic toys Contact: price Plastic: LOTOYS LOTOYS

Note:

Ensure that your programs are fully documented, using comments. Write also contrue tors, selectors and predicates.