A scientist is experimenting with bacteria. She starts with 900 bacteria in a petri dish. She introduces a toxic substance that causes the sample size to reduce by 1/2 evely hour.

I’m which figure is point g an orthocenter

Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?

Percent increase and decrease. original number: 45 new number: 18