A family is remodeling their apartment. They decide to increase the width of their living room to 115 of its original size. If the original width of the living room is 20 feet, then what will be the width of the new living room? (Pls help will give brainlest)

probably the last option

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."