Jonah measured a picnic area near the river and made a scale drawing. The picnic area, which is 70 yards wide in real life, is 10 inches wide in the drawing. What scale did Jonah use? asap plz

ummm seems that u didnt post the attachement !

16.80 times .20= 3.36

step-by-step explanation:

the answer for the second equation is (4,0)

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."