At a bake sale, a total of 80 cookies were sold. If the ratio of chocolate chip cookies sold to oatmeal cookies sold was 9 : 1, how many chocolate chip cookies were sold?

7,1

Step-by-step explanation:

80 divided by 9 times 8 i think

80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol

graph b

step-by-step explanation:

one solution- graph a (clear intercepting point.)

no solution- graph b (they're parallel, there will never be a point of interception.)

infinite solutions- graph c (all points intercept.)