Monument outside city hall has dimensions as shown in the figure below. If one gallon of paint can cover 246 ft, how many gallons of paint must be
bought in order to paint the monument? Assume that the base of the monument cannot be painted and that paint can be bought only by the gallon.
11

2 2/3 hours duhh silly

step-by-step explanation:

there is only one way to arrange all the eight relative to each other because they are not distinct. we have

now there are nine places to place an (and not more than one in one place).   because we have four symbols, we need to choose four of these nine places to insert an . order does not matter because the are not distinct.

thus there are 1 · c(9,4) ways, or, if we calculate it,

thus there are 126 ways to form such "words."

b and c are the correct answers.

good luck on the quiz! : d