1.shirts were on sale at 3 for $35.59. estimate the cost of one shirt? 2. estimate to decide if you can buy 4.8 pounds of hamburger at $2.99 per pound for $12.00

Number 1:
So, to find the unit price/rate, you do y divided by x. Y is the dependent variable and x is the independent. The number of shirts you buy tells you what the price will be. So, the cost/number of shirts=unit price.
35.59÷3
11.86333≈11.86
So, the cost of one shirt is $11.86.

Number 2:
Let's see. We need to round the bounds and the price per pound. 4.8 is closer to 5 than 4, so let's round it up to 5. 2.99 is closer to 3 than 2, so round it up to 3. We need to multiply it.
5×3=15
15>12
So, you can not purchase the hamburger with $12.

Tell me if this helps!!