Ahmad will spend at most $30 on gifts so far he has spent $13 what are the possible additional amounts he will spend?

Which statement about perfect cubes is true

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.