Which statements are true about the ordered pair (−1, 5) and the system of equations? {x+y=4 {x−y=−6 a. the ordered pair (−1, 5) is a solution to the first equation because it makes the first equation true. b. the ordered pair (−1, 5) is a solution to the second equation because it makes the second equation true. c. the ordered pair (−1, 5) is not a solution to the system because it makes at least one of the equations false. d. the ordered pair (−1, 5) is a solution to the system because it makes both equations true.

Malia is observing the velocity of a cyclist at different times. after two hours, the velocity of the cyclist is 15 km/h. after five hours, the velocity of the cyclist is 12 km/h. part a: write an equation in two variables in the standard form that can be used to describe the velocity of the cyclist at different times. show your work and define the variables used. (5 points) part b: how can you graph the equations obtained in part a for the first 12 hours? (5 points) if you can try and make this as little confusing as you can

"you know, playing tennis is healthier than watching a tennis match on television," katya remarked to her couch potato brother. in this sentence, healthier is a/an a. superlative. b. comparative. c. positive form. d. adverb.

Franco wants to double the volume of the cone. what should he do?