Stephanie has $152 in the bank. she withdraws $20. then she deposits $84. write an addition expression to represent this situation. then find the sum and explain its meaning.

The measure of an angle is 117°. what is the measure of a supplementary angle?

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

At the county fair, the baxter family bought 6 hot dogs and 4 juice drinks for $12.90. the farley family bought 3 hot dogs and 4 juice drinks for $8.55. find the price of a hot dog and the price of a juice drink.