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3 points Given

2 points Use the rules for working with measurements to give your answer to the appropriate accuracy and/or precision.

1 point Perform the indicated operation and simplify it.

1 point An 15 V automotive coil has 600 turns of wire in the primary circuit.  The secondary voltage is 10,000 V.  How many secondary turns are in the coil?  [Hint: The ratio of secondary voltage to primary voltage equals the ratio of secondary turns to primary turns.]

1 point Round the following number to the nearest ten. 1,785,692    

1 point Solve the equation and check.

1 point How many significant digits are in 4400 lb?

1 point Express the ratio in the lowest terms. 18 : 45

1 point Express the ratio in the lowest terms. 25 : 75

1 point Solve the equation.