You get your hair done for $56.00 and you tip the hairdresser 20%. How much is your tip?  A.$76.00
B. $67.20
C.$11.20
D.$20.00

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done

When only separate discreet points are graphed it is called?