15. What is the value of the function f(x) = 2x + 3 for an input value of 3?
12
9
3

Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?

Tim tradesman pays $2,000 annually for $125,000 worth of life insurance. what is the cash value of the policy after 10 years? 11,125 13,125 17,800 111,250

Study results indicate that the mean length of time people spend on a bus in a city is between 21.2 min and 24.5 min what is the study margin of the error?