Express in scientific notation. choose the answer with the proper number of significant figures. (2.4 x 10-9) (4.0 x 1023) =

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

Guests at an amusement park must be at least 54 inches tall to be able to ride the roller coaster. which graph represents the set of heights that satisfy this requirement?

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.