The sales tax rate at a sporting goods store is 7.5%. Sales tax on an item is a function of its price.
Which is the independent quantity in this function?
A The sales tax rate
B The price of the item
C The amount of sales tax on the item
D The total price of the item including the tax

Will mark brainliest for correct answer! i have been on this problem for an hour and can't find the answer. i'm begging here! incase you cant read the instructions in the picture because of too much or too little lighting: note: enter your answer and show all the steps that you use to solve this problem in the space provided.write a list of steps that are needed to find the measure of b. provide all steps as clear as possible, !