X y
0 2
1 -1
2 -4
3 -7
is this linear or nonlinear?

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Tyler enjoys the fish so much that after his birthday his family decides to take him to a famous aquarium a tank at the aquarium is similar to his tank with the scale factor of 8 how many times greater is the volume of the tank at the aquarium than the volume of tyler tank

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.