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

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.

Select all the expressions that will include a remainder.