How do you get the answer for $7.85 x 0.8?

Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia

Asap its important using the information in the customer order, determine the length and width of the garden. enter the dimensions.length: feetwidth: feet

Is the point (0, 8) on the x-axis or y-axis? how do you know?