the linear function f x equals 0.2 x + 79 represents the average test score in your math class where X is the number of tests taken the linear function g x represents the average test score in your science class where x is the number of the test taken

they charge the same amount at 20 minutes.

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."

146

step-by-step explanation: