Write a smart contract, with three functions. Function “calculate” should take two parameters a and b of type uint256. It should return the result of a + b. A user must pay a small fee to be allowed to use the function calculate. During deployment, the user can specify the fee. The user that deployed the contract should be able to withdraw the fees. It should be possible to specify the amount to be withdrawn. Code this into a function named “withdraw”. For convenience, add a function that returns the balance of the contract. Call this function “getBalance”. Add screenshots of your working code and output in form of a PDF document.

QUESTION 3 Which of the following statements is TRUE about function? A function is activated through its function prototype. Every function must return a type and contains a list of parameters. If a function is declared as an integer it will return a decimal value. A group of statements placed together to perform a task.

Write a function convertQuartersToDollars that has the noOfQuarters, noOfDollars, and remainingCents as formal parameters of data type int.  The noOfQuarters is the number of quarters to be used to calculate  noOfDollars, the number of dollars that the total number of quarters can be converted to,  and remainingCents , the remaining cents.  The noOfDollars  and remainingCents are returned from the function,

For each of the following expressions, write functions f1, f2, f3, and f4 such that the evaluation of each expression succeeds, without causing an error. Be sure to use lambdas in your function definition instead of nested def statements. Each function should have a one line solution. f1 takes in nothing and returns 3. f2 takes in nothing and returns a function that takes in nothing and returns 3. f3 takes in nothing and returns a function that takes in 1 value and returns that same value. f4 takes in nothing and returns a function. This function takes in nothing and returns another function. This next function takes in a value and returns yet another function. This final function takes in nothing and returns the value passed into the previous function (if this explanation is confusing, have a look at the doctest, and it might be more clear). def f1(): >>> f1() 3 |||||| "*** YOUR CODE HERE ***" def f2(): |||||| >>> f2() () 3 |||||| "*** YOUR CODE HERE ***" def f3(): |||||| >>> f3() (3)…