Simplify the following expression:
5a2 + 3b - 4 - 9a2 + 6

Create another three examples that does not behave like a function. explain why your chose each example to fit the category be very

Samantha swam upstream for some distance in one hour. she then swam downstream the same river for the same distance in only 12 minutes. if the river flows at 4 mph, how fast can samantha swim in still water?

With these: 18/36 = 1/? missing number change 1 5/8 to improper fraction. change 19/5 to a mixed number.