Answer:
12.5
30
68.5
Step-by-step explanation:
If a line's slope is

, the slope of the perpendicular line is

in this case, the given line has a slope 4, which is 4/1, so the perpendicular line has a slope/gradient
The functions shows in the data table is an exponential function.
Answer:
A
Step-by-step explanation:the lines do not cross therefor the two equations do not share a solution.