Which relation is a function? 1) ((2.1).(3.1).(4.1).(5,1)] 2) ((1.2).(1,3), (1,4),(1,5) 3) ((2,3).(3,2),(4.2).(2,4)) 4) {(1,6).(2,8), (3,9).(3,12))​

Driving 75 mph, it takes alicia 2 hours to reach the airport to go on a vacation. it then takes her 4 hours to get to her destination with the jet traveling at a speed of 400 mph. how many miles does alicia travel to get to her destination?

What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?