Mike paid $2.94in sales tax on an item that cost $42.00 before tax. at that rate how much would he pay in sales tax for an item that costs $58.00 before tax ?

He would pay $4.06 sales tax for an item costs $58.00 before tax.

Step-by-step explanation:

Given:

Mike paid $2.94 in sales tax on an item that cost $42.00 before tax.

Now, at that rate find the sales tax for an item that costs $58.00 before tax.

So, we find the rate:

Sales tax rate = sales tax on item / cost of item before tax  ×  100

Now, we get sales tax on item costs $58.00:

Therefore, he would pay $4.06 sales tax for an item costs $58.00 before tax.

the best buy, is the 4- kilogram bag of lollipops for $18.40.

step-by-step explanation:

i found my answer by dividing the cost of each bag by their respective weights.

14.88 divided by 2 = 7.44

17.29 divided by 3 = 5.77

18.4 divided by 4 = 4.6

24.4 divided by 5 = 4.88

by this, i found that the 4 kilo bag is the best buy.

rounding to the nearest thousandth would be 452,000