How to i answer this (picture)? pls don't just give the

If f(x) = 3-2x and g(x) =1/x+5 to what is the value (f/g)(8)

Which sentence describes why polygon mnop is congruent to polygon jklp? a. polygon jklp maps to polygon mnop through a translation. b. polygon jklp maps to polygon mnop through a rotation. c. polygon jklp maps to polygon mnop through a dilation. d. polygon jklp maps to polygon mnop through a stretch.

What is the number 321,000,000 in scientific notation? also what is the number? ?