30. A model train is 4 inches long. If the scale factor is 1 in : 48 it, what is the
actual length of the train?
F 192 feet
H 12 nches
G 12 feet
s 192 inches

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.

Find two numbers if their sum is 91 and the ratio is 6: 7?