Solve in MATLAB

3. Electric consumption The electricity accounts of residents in a very small rural community are calculated as follows if 500 units or less are used, the cost is 2 cents per unit; if more than 500, but not more than 1000 units are used, the cost is $10 for the first 500 if more than 1000 units are used, the cost is $35 for the first 1000 units plus 10 cents for in addition, a basic service fee of $5 is charged, no matter how much electricity is used units, and then 5 cents for every unit in excess of 500; every unit in excess of 1000; The five residents use the following amounts (units) of electricity in a certain month: 200, 500, 700, 1000 and 1500. Write a program that uses a for loop to calculate how much they must pay. Display the results in two columns: one for the electricity used in each case, and one for amount owed. Test Case: e = [200 500 700 1000 1500]; ecost = kwcost( e ) ; TT-table (e ' ,ecost' , 'VariableNames' ' { ' Usage-kWh' , ' Cost-USD')) ; disp (TT) Result: Usaqe kWh Cost USD 200 500 700 1000 1500 15 25 40 90 4. Fibonacci numbers Fibonacci numbers were originally developed to model the idealized population growth of rabbits. Since then, they have been ound to be significant in any naturally occurring phenomenon. The Fibonacci numbers can be generated using a recursive formula. The recursive step contains two recursive calls and there are two base casesi.e. two cases that cause the recursion to stop). Write a function for computing the n-th Fibonacci number F(n) = F(n1) F(n2) otherwise By recursion, we mean that your function will call your function from within itself. Test Cases: >> myFib(10) ans- >> myFib(25) ansE 75025