Answer:Nolan took 100 seconds to complete his multiplication test. Solution:85% of time Nolan took to complete multiplication test=85 seconds 100%=85/85 × 100 =100 seconds.
you can do it in proportions do 15%/100% = 85/? then do 15 times 85 t hen divide the answer by 100 which will get you 12.75 then do 85 plus 12.75 then that’s the answer that nolan took for his test.