Answer:
y=318(1-0.5)^x
Step-by-step explanation:
x represents the amount of years and y is the ending price
Combined in mathematics is to add together to find a total. If you combine 1 and 2 you get 3.
Answer:
The distance is
or
.
Step-by-step explanation:
Slope of parallel: 2
Slope of perpendicular: -1/2
Pick a point for y =2x + 7. For example (0,7)
Use the perpendicular slope to get to the other line to find the other point of y=2x-3. Look at the screenshot...I got (4,5).
Distance formula 
Insert (0,7) and (4,5)
= 