Without using 10, show directly that (17.6-1)8 = 17.6-8

Answer question above and explain each step : )

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a. about 4 b. about 8 c. about 40 d. about 21

Witch represents the inverse of the function f(x)=1/4x-12