4. Brualio buys a new truck for $22,000. The truck depreciates at a rate of 15% per year. Which equation models the value, V(t), in dollars, of the truck after t years? a) ()=22,000(0.85) c) ()=22,000(0.15) b) ()=22,000(−0.15) d) ()=22,000(−0.85)

Sandy is upgrading her internet service. fast internet charges $20 for installation and $52.45 per month. quick internet has free installation but charges $57.45 per month. part 1 out of 2 complete the equation that can be used to find the number of months after which the internet service would cost the same. use the variable x to represent the number of months of internet service purchased.