Consider this number in scientific notation. 3.75x10^8. Which is true about writing a number in standard form check all that apply

Brent wants to know what is 5 x 1/2

Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b

The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?