Packs of pens come in sets of 10. packs of felt pens contain 6 coloured and 4 black if a school buy enough packs so there are 90 black felt pens, how many coloured pens will be bought ?

If h(x) = f[tex]h(x) = f[/tex] ° [tex]g) (x)[/tex] and [tex]h(x) = \sqrt[3]{x+3}[/tex], find [tex]g(x)[/tex] if [tex]f(x) = \sqrt[3]{x +2}[/tex] ·

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?

In the geometric progression –3, 12, −48… what term is 3,072?