What is the final price of a product that costs $14.30 with an added tax rate of 4%?

The anwser cause i do not understand just plez

The power generated by an electrical circuit (in watts) as a function of its current c (in amperes) is modeled by p(c)= -15c(c-8) what current will produce the maximum power?

The graph shows how many words per minute two students read. drag to the table the unit rate that matches each graph.