Which of the following expresses the coordinates of the foci of the conic section shown below? (x+2)^2/64+(y-1)^2/81=1

Cassie is traveling 675 miles today to visit her brother and his family. so far, she has stopped for gas three times. at the first stop, she put in 7.1 gallons of gas and paid $23.79. at her second stop, she put in 5.8 gallons of gas and paid $19.08. and, at the third stop, 6.6 gallons and paid $20.39. at which stop did casey pay the most for gas?

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.

What is a correct first step in solving the inequality-4(3-5x)> -6x+9