Luca bought his home for $115,000 in 2007. property values have increased 5% every year since she has owned the home. which of the following equations can be used to represent the price of the home x years after 2010? y = 115,000(1.5)x y = 115,000(0.95)x y = 115,000(1.05)x y = 115,000(0.05)x

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.