What is the opposite of 3,7.5, and -2 2/3?

Carter drank 15.75 gallons of water in 4 weeks. he drank the same amount of water each day.a. estimate how many gallons he drank in one day.b. estimate how many gallons he drank in one week.c. about how many days altogether will it take him to drink 20 gallons?

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?