4. proportional
5. proportional
6. I don't know what functions are
7. It has a straight line and distance is proportional to time.
Answer:
p=13
hence 13+9=22
Step-by-step explanation:
First way: x * 1.05
This computes directly what 105% of x will be.
Second way: x + (x * 0.05)
This takes x (which is 100%) and adds 5% of x to it.
So we have the equation:

Then we need to multiply by 4 on both sides to get rid of the denominator on the left:

Then we subtract 9 on both sides to solve for z:

Therefore the answer is z = -0.6.