c++

1. 2. Fundamentals For each of the following questions, Write ONLY what is requested. State the rule for identifiers (the naming rule). b. Write a single statement that initializes four char variables. Evaluate the expression 16 + 34 / 7 - 2 - 5 Make sure to show work. d. Given the double variable y that has already been initialized, write a statement that will evaluate to true if and is a possible grade for this exam. Write a statement(s) that displays a rectangle of asterisks. .. that is 5 asterisks wide and 3 asterisks high CA es Problem Solving 2. An arithmetic sequence is an ordered set of numbers such that all adjacent elements have the same fixed difference between them. In fact, each element of an arithmetic sequence is determined as follows an = a1 + d(n-1) where ay is the value of the first element of the sequence, d is the step size and n is the position of the element in the sequence. For instance, if ay = 5 and d = 2, the tenth element of the sequence, 810, will be ano = 5+ 2(10 - 1) = 23. Given the above information, write a COMPLETE program that will sum ay to as and display the result of an arithmetic sequence whose first element is equal to 6 and whose step size is an integer received from the user. Your program must prompt the user to enter the step size and format the display as "Sum result where result is the calculated sum. Likewise, the display must be on its own line. For instance if the user entered 2 for the step size, your program should display "Sum - 50