Answer:
The value of x component changes at a rate of
units per second
Step-by-step explanation:
We are given that 
Differentiating on both sides with respect to time we get

It is given that
Solving for
we get

Answer:
50% chance
Step-by-step explanation:
4 * 50% = 2
She would have saved 30 dollars.
Add 8 to 46. Then divide 54/8 to get 6.75 and t=6.75