Brandi and her friends are attending
a concert and have a total of $500 to
spend. they buy 3 tickets, spending
the same amount on each ticket. if
they have $215 left, which number
line represents the amount brandi
and her friends spent on each of the
3 concert tickets?

Acertain standardized? test's math scores have a? bell-shaped distribution with a mean of 520 and a standard deviation of 105. complete parts? (a) through? (c)

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.

As a self-employed seamstress, you know that it takes 7 yards of material to make 3 jackets. you bought 15 yards of material to make 7 jackets. did you buy enough material? if not, how much were you over or under?