Cookies are sold singly or in packages of 10 or 30 . with this packaging, how many ways can you buy 60 cookies?

You have two cards with a sum of -12 in both hands. a. what two cards could you have? b. you add two more cards to your hand, but the total sum if the cards remains the same, (-12).

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)