What type of front is formed when a warm air mass replaces a cool air mass?

Explanation:

When Phillip invested in a computer company's stock, the price was $56 per share. Since he bought it, the value of the stock has dropped by $1.50 every week. Which equation would describes v, the value of a share of stock, w weeks after Phillip bought it?

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.