In a class of 140 students, 32 are computer science majors, 49 are mechanical engineering majors, 12 are civil engineers and the rest are general engineering majors. Assume students can only have one major. If a student is chosen at random what is the probability they are:

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

Identify the function that contains the data in the following table: x     -2         0         2         3         5     f(x)     5         3         1         2         4     possible answers: f(x) = |x| + 1 f(x) = |x - 2| f(x) = |x - 2| - 1 f(x) = |x - 2| + 1