You find 12 coins under the couch. every coin is either a nickel or a penny, and they add up to a total of 23 cents. how many of each type of coin do you have? let x represent the number of pennies and y represent the number of nickels.

answer: $420.00

step-by-step explanation:   multiply $400.00 by 5%.

400.00*.05=20

400+20 = 420

answer: they are supplementary angles

step-by-step explanation: 161+19=180. supplementary angles equal 180 degrees

question: use the following table of a school bus during morning pickups to calculate its average speed between 2.8 km and 4.2 km

answer: 42 km/h

explanation: 1.4/0.033 42.42424 = 42 km/h

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(jacemorris04)