Plot points on the number line to represent all values that rounded to 500 when to the nearest hundred and 450 when rounded to the nearest ten.

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?