The total number of calories you can burn in Katia's dance class after t minutes is modeled by the function...

what the h e ll is this

Step-by-step explanation:

$34.50

Step-by-step explanation:

Hi!

First you want to find out how much it would cost to buy 1 pound of walnuts.

3.45 ÷ 0.75 = 4.6

Which means that it costs $4.60 to buy 1 pound of walnuts.

To find out how much it costs to purchase 7.5 pounds of walnuts, you multiply that by 4.6

7.5 × 4.6 = 34.5

It costs $34.50 to purchase 7.5 pounds of walnuts.

Hope this helped!