After a 7.5% tax Tom paid $30.09 for a new hat what is the price of the hat before tax

27.83$  I believe

Step-by-step explanation:

30.09 is the end price, so multiply that times 7.5% or 0.075 in decimal terms

You would get 2.25675 which is the amount of tax that was paid

So all you have to left is subtract 2.25675 from 30.09 to find the original price

or 27.83 rounded to the nearest hundredth

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation:

step-by-step :