If a drug has a concentration of 2.145 mg per 1.716 mL, how many mL are needed to give 2.937 gram of the drug?

Josephine has a great garden with and area of 2x2 + x - 6 square feet

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.

Aculture started with 2,000 bacteria. after 8 hours, it grew to 2,400 bacteria. predict how many bacteria will be present after 19 hours . round your answer to the nearest whole number. p=ae^kt