In one particular suburb, 20% of families own a terrier. If there are a total of 30 families in this neighborhood that own a dog in general, then how many dog owners own a terrier? Round your answer to the nearest whole number if necessary. Explain your answer.

The answer is 6.

Step-by-step explanation:

First, you must take the number of families in the area (30). Then you multiply by 0.2 (20%). When you do this, you get 6.

Hope this helps! If you can, help me with my question, that would be greatly appriciated!!!

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!

one set of data has more variation than the other. hope this !