The volume of water remaining in a tank after 10 of its original volume (x) is drained out

Nell has a sales clerk job that pays $12 per hour for regular gas work hours. she gets double time for any hours over 40 that she works in a week. how many hours did nell work if her weekly pay was $744

Aculture started with 3000 bacteria. after 5 hours it grew to 3900 bacteria. predict how many bacteria will be present after 9 hours

Write the expression as a single natural logarithm. 2 in a - 4 in y