Which equation has an a-value of –2, a b-value of 1, and a c-value of 3? 0 = –2x2 x 3 0 = 2x2 x 3 0 = –2x2 3 0 = 2x2 – x 3

Anyone know? is appreciated! will mark brainliest if correct!

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

The holiday party will cost $160 if 8 people attend.if there are 40 people who attend the party, how much will the holiday party cost