3. The population of cats in a rural neighborhood has declined in the past year by roughly 30%. Residents hypothesize that this is due to
wild coyotes preying on the cats. The current cat population in the
neighborhood is estimated to be 12. Approximately how many cats
were there originally?

21

step-by-step explanation:

12

step-by-step explanation:

12 + 5 = 17

12x2=24

24-7=17

68719476736

step-by-step explanation:

8*8*8*8*8*8*8*8*8*8*8*8=68719476736

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

brainliest is always apprectiated