PLEASE HELP
The human body normally produces about 2 X 10^6 red blood cells per second.
A. Use scientific notation to express how many red blood cells your body produces in one day.
B. One pint of blood contains about 2.4 X 10^12 red blood cells. How many seconds will it take your body to replace the red blood cells lost by donating one pint of blood? How many days?

Two lines that do not intersect are skew. always sometimes or never

Type the correct answer in each box. spell all words correctly. a sequence of transformations maps ∆abc onto ∆a″b″c″. the type of transformation that maps ∆abc onto ∆a′b′c′ is a . when ∆a′b′c′ is reflected across the line x = -2 to form ∆a″b″c″, vertex of ∆a″b″c″ will have the same coordinates as b′.

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?