What is the ordered pair of c' after point c (1, 2) is rotated 90° clockwise?
a. c' (-1,2)
b. c (1, -2)
c. c (2,1)
d. c' (2, -1)

Lisa berry plans to rent an apartment for $1,090 per month. she estimates the annual expense will be as shown on the chart below. what is her average monthly cost?

Look at this expression. a3b3c a-3b-3c-1 which of the following is the simplest form of the expression above?

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)