The amount of money you have after investing $400 for 8 years and $600 for 6 years at the same interest rate is represented by 400x8+600x6, where x is the growth factor. Classify the polynomial by the number of terms. What is its degree?

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."

if i did my math right then the answer should but 108

that would be a prism, if not right, feel free to correct me