What is six million seven hundred thousand and twenty in standard form

He concluded that a heavier object dropped from the same height as a lighter object will land

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.