Select the correct answer. Which decimal number is equivalent to the hexadecimal number F1?
A. 17
B. 31
C. 241
D. 1009

Which is a graph of a proportional relationship?

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b