1. * 2 points
Which relation is not a function?
1) {(1,5),(2,6),(3,6),(4,7)}
2) {(4,7),(2,1),(-3,6),(3,4)}
3) {(-1,6),(1,3), (2,5),(1,7)}
4) {(-1,2),(0,5),(5,0),(2,-1)}

The empire state building in new york city is 1454 feet tall a model of a building is 24 inches tall what is the ratio of the height of the model to the height of the actual empire state building

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

Due to financial difficulties the owner of 4 skateboard stores is going to close 2 of his stores. based on the money earned at each store, which two stores should remain open?