Find the measure of the angle plz help

What kinds of numbers make up the set of numbers called the real numbers? give examples when you explain a number type. there are a limited set of types of numbers, but an unlimited number of examples of these numbers.

Which letters from the table represent like terms? a and b b and c a and d b and d

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)