How is 6.8 million written in scientific notation?
6.8 x 10^7 or 6.8 x 10^6

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

"which statement is necessarily true if bd is an altitude to the hypotenuse of right ? abc? a.) ? adb? ? bdc b.) ? adb~? bdc c.) abbc=acbd d.) ? bac? ? bdc"

I'm marking the brainliest and it's 15 points