Pls help i only have 10 minutes on my math test!!
the ratios are

8:5 :10

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

What is the product? a-3/15a × 5/a-3

Einstein office equipment has a rental plan for office machines. a fax machine that lists for $722.98 can be rented for 22% of the price annually. the state imposes a usage charge of 3.2%. if stephen hawking travel decides to rent the fax machine, what will its total monthly rental charge be?