Paige feeds her dog 0.12 kilograms of dry dog food each day. She wants to buy the smallest bag that has enough food to feed his dog for 1 month. Should she buy the bag that has 1.8 kilograms, 2.4 kilograms, or 4.2 kilograms??
Explain it correctly plsss!!!
I will mark it the brainliest whoever does it best!!

4.2kg

Step-by-step explanation:

She feeds her dog .12 a day, so for a month, I would multiply by 30 or 31

(both will give you the same answer).

After doing that , you get 3.6 (I multiplied by 30)

The other 2 options are less than that.

Hope this helps!

The 4.2 kilograms bag

Step-by-step explanation: First of all, the average month has 30 days, so we want to make sure that Paige can feed her dog for at least a month, or 30 days.

First, multiply the amount Paige will feed her dog per day, 0.12 kilograms by 30 to see the total amount of kilograms she will need to feed her dog.

0.12 x 30 = 3.6 kilograms. So, Paige will need 3.6 kilograms to feed her dog for a month.

So, Paige will need to buy at least the 4.2 kilogram bag in order to feed her dog for a month because the other two bags don't have enough food. Paige will even have some food left over for a couple of extra days.

linearly: 8560 bacteria

exponentially: approximately 75233 bacteria

step-by-step explanation:

assuming it is not exponential (we would have some really complicated logarithms), let's say it is linear. then, after 5 hours, it increased by 1200 bacteria, so every hour it increases by 240 bacteria. this means that after 19 hours, we get 19 * 240 + 4000 bacteria or 3800 + 760 + 4000 = 7800 + 760 = 8560 bacteria.

because it says round your answer, i will do this exponentially (with a calculator, of course). first, we need to find how much it multiplies by every hour, by taking the 5th root of 52/40 or 13/10. this is approximately 0.167. we still need to add 1 to this, because we are multiplying by that number, not adding that amount of the number. now, we just calculate 4000 * (1.167)^19. use a calculator to get approximately 75232.6, or 75233.

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4