The resale value of a textbook decreases by 25% with each previous owner. A new textbook is sold for $85. Which function represents the resale value of the textbook after x owners?
f(x) = 85(1 -0.25)
f(x) = 85(1 + 0.25)
f(x) = 85(0.25)
f(x) = (85 -0.25)*

What rotation was applied to triangle def to create d’e’f’?

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z

What is the measure of angle x? a.101 b.158 c.44 d.79