Horace's speedometer reads 60 miles per hour, but during a road test he finds that
he was actually driving 58 mph. What is the percent error in Horace's speedometer?
Show your work.

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median amount spent? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28