The dry cleaning fee for 3 pairs of pants is $18, how much will the the dry cleaner charge for 11 pairs of pants

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.

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).

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?