Step-by-step explanation:

Plane UVWX and plane QRST
The way it is written, none of them.

The "a"s cancel out.
Answer:
A=5
Step-by-step explanation:frac{15s}{15}=frac{75}{15}
divide both sides by 15
Divine the total number of the entire chart by the number of a single line or bar to give you the ratio in a bar or line chart. For example, if a bar or line represented 5 in a chart with a total of 30, you would divide 30 by 5. This would give you a result of 6. Therefore, the ratio would be 6:1.