Mandy bought a sweater that D dollars. she paid the clerk $40.00. which expression shows her purchase? A)40.00-d
B)40.00+d
C)d-40.00
D)d-5.19

A: 40.00_D

Step-by-step explanation:

i dont know

step-by-step explanation:

the reason i dont know is because i have not taken this class and for that reason i haven't learned this stuff

hope i could

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."