Which geometric figures have a measurable quantity

The speed of a falling object increases at a constant rate as time increases since the object was dropped. which graph could represent the relationship betweent time in seconds, and s, speed in meters per second? speed of a falling object object over time

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !