Will mark BRAINLIEST and give ALL OF MY POINTS Tysm!

Step-by-step explanation:

The quantity of food required for the two cats for one day is ...

  (3/4 can) + (1/2 can) = (3/4 +2/4) can = 5/4 can

Then the cost per day for cat food is ...

  $5/(3 cans) × (5/4 can/day) = $25/12 /day

We note that the cost for some number of days will be the product of this factor and the number of days, rounded up to the next higher $5.

1. The cost for 60 days is ...

  (60 days)($25/12 /day) = $25 × 60/12 = $125

A 60-day supply of cat food costs $125.

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2. A 29-day supply costs ...

  (29 day) × $25/12 /day = $60 5/12, rounds up to $65 for 29 days

A 30-day supply costs ...

  (30 day) × ($25/12 /day) = $62.50, rounds up to $65 for 30 days

A 31-day supply costs ...

  (31 days) × ($25/12 /day) = $64 7/12, rounds up to $65 for 31 days.

These costs are all the same.

3 cans last, on average, 2 2/5 days. That means some purchases of 3 cans will last for 2 days, and some will last for 3 days. It so happens that the purchase made to cover day 29 will also cover day 30 and day 31.

b. 2 and 4

step-by-step explanation: