Natasha and Richard are marking exam papers. Each set takes Natasha 45 minutes and Richard 1 hour. Express the times Natasha and Richard take as a ratio.
Give your answer in its simplest form.​

Alcoa was $10.02 a share yesterday. today it is at $9.75 a share. if you own 50 shares, did ou have capital gain or loss ? how much of a gain or loss did you have ? express the capital gain/loss as a percent of the original price

How far does the wijw nj jh jevh dhhb vte hbhe gvbf5wf bjehn v

What is the scale factor of this dilation? a) 1/2 b) 1/3 c) 2 d) 3