Sally has 2 cats and each cats eats 1/4 tin of cat food every day Sally buys 9 tins of cat food
For how many days will the cat food feed her 2 cats?

Explаnation is in а file

xlnk․cf/tcMG

18 days

Step-by-step explanation:

Given, Amount of cat food eaten by each cat per day = 1/4 th of a tin

          Amount of cat food eaten by 2 cats per day = 1/4 × 2 part of a tin = 1/2 of a tin No. of days 9 tins will last = 9 × 2 = 18

correct answer:

i^31 = -i

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!