You go to a restaurant and order an appetizer for $5.84, an entree for $12.72 and a drink for $2.48. Estimate the total bill (assuming no additional tax or tip) by rounding each item to the nearest ten cents.

Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.

Acoin bank containing only dimes and quarters has 12 more dimes than quarters. the total value of the coins is $11. how many quarters and dimes are in the coin bank?

How do you solving the solution of each system using elimination?