Answer:
<h2><em>
The folowing code counts the number of elements in list that are less than temp.</em></h2>
Explanation:
<em>Because an array is an object that stores many values of the same type. An array element is one value in array. An array index is an integer indicating a position in an array. Like strings, arrays use zero base indexing, that is array indexes start with 0(zero).</em>
Answer:
The sequence of events in processing information, which includes:
1) input
2) processing
3) storage and
4) output.
These processes work together and repeat over and over. Input—entering data into the computer. Processing—performing operations on the data.
Explanation:
Solution :
Here, we need to perform JOIN operation of the students and registration.
Use NATURAL JOIN operator 
and so no need to specify Join condition.
Also we need to selection operator tp select only those course whose major in "philosophy".
Finally we projection operator π to project only distinct students name who took at least three courses.
![$\pi [\sigma_{\text{student's nam}e} [ \sigma(\text{three courses}) \Join \text{"Philosophy"}]]$](https://tex.z-dn.net/?f=%24%5Cpi%20%5B%5Csigma_%7B%5Ctext%7Bstudent%27s%20nam%7De%7D%20%5B%20%5Csigma%28%5Ctext%7Bthree%20courses%7D%29%20%5CJoin%20%5Ctext%7B%22Philosophy%22%7D%5D%5D%24)
A:<span> Employers must provide eye protection for employees whenever they are exposed to potential eye injuries during their work if work practice or engineering controls do not eliminate the risk of injury. Sparks, Harmful chemicals etc</span>
