Total health care costs in the united states in 2003 were $2,000,000,000,000. express this number in scientific notation.

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

Kathleen's gross annual salary is $56,820. what is the maximum amount of rent she can afford to pay? round your answer to the nearest dollar. question 1 options: $1146 $1326 $1656 $2368

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.