Which one of these can be represented by the opposite of 80?

Four quarts of a latex enamel paint will cover about 200 square feet of wall surface. how many quarts are needed to cover 98 square feet of kitchen wall and 52 square feet of bathroom wall

Can someone me immediately, this is due by midnight! if you can't see the question, i'll text it to you. show the steps you took to get your answer.

Ahyperbola centered at the origin has a vertex at (-6,0) and a focus at (10,0). what are the directrices?