70 ! pls

use the graph to evaluate the piecewise function at the given values.

1. f(-1)
2. f(2)
3. f(1)
4. f(-2)
5. f(0)

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

Extra points! find the missing dimension! need asap