8. Hunter wants to purchase an umbrella for $60. The actual price of the umbrella is $50. What is Hunter's percent error? 9. Marina thinks the cost to rent scooters was $100. The actual price is
$150. What is Marina's percent error?

10. Jillian calculates to see if it will take 95 minutes to run 7 miles. She runs the distance in 80 minutes. What is Jillian's percent error?

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14

The function f(x)= -(x+5)(x+1) is down. what is the range of the function?

What ratio is proportional to 18/21