Can someone me i would just need the answer

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?

The area of square garden is 300m squared. how long is the diagonal?

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.