If a, b, c, and d are non-zero integers, which of the following is equal to a/b * c/d?

a) ac/bd
b) ad/bc
c) ac/b+d
d) ad/b+d

One integer is 8 times another. if the product is 72, then find the integers

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

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq