I received a raise from $16.67 to $17.12 per hour, 40 hour a week. What percentage of a raise did I receive?

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Campus rentals rents 2 and 3 bedrooms apartments for $700 ans $900 a month respectively. last month they had six vacant apartments and reported $4600 in lost rent. how many of each type of apartment were vacant?

If jobs arrive every 15 seconds on average, what is the probability of waiting more than 30 seconds?