Sam has a 16% off coupon for a tune-up at Quick Service Gas Station. If a tune-up is regularly $45,
what is the sale price

What is the common difference in the following arithmetic sequence? 7,3,-1,-5

Need ! give step by step solutions on how to solve number one \frac{9-2\sqrt{3} }{12+\sqrt{3} } number two x+4=\sqrt{13x-20} number three (domain and range) f(x)=2\sqrt[3]{x} +1

Write the percent as a fraction or mixed number in simplest form. 0.8%