28. A population of a city is 422,000 and increases by 12% each year. Use an exponential function to find the population of the city after 8 years, 29. A car bought for $13,000 depreciates at 15% per year. Use an exponential function to find the value of the car after 5 years.

30. Scott purchased a painting in 2006 for $1,250. Since then, its value has increased by 6% each year. Use an exponential function find the value of the painting in 2017.​

The scatter plot graph shows the average annual income for a certain profession based on the number of years of experience which of the following is most likely to be the equation of the trend line for this set of data? a. i=5350e +37100 b. i=5350e-37100 c. i=5350e d. e=5350e+37100

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.