Find the value of each variable. a = ???
b = ???
c = ???
d = ???

simplify your answers. type exact answers, using radicals as needed.

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)