What iS an apperturance?

What is 573 percent as decimal? Does 6 times 130 equal 780? Are the sides of the membrane symmetrical? What is the equation of the xz-trace for the plane 7x 2y 3z 19? What does G3 A2 mother mean? What percentage is 136 of 185? Why are a pair of scissors called a pair of scissors if there's only one of them? The GCF of a group of natural numbers the largest number that is a factor of all the numbers in a group? What is 45 minus 15 minus 15? What is 12n equals 12? Who found the first known value of pi? Can Two intersecting lines both be tangents? How would you Simplify a Ratio of 2.0 to 3.5? Can you use more than one arithemtic operator in a formula? How long did it rain while noah was on the arc? How can I make 5 42 6-22-1 equal 19? What is meant by fractional index? Assume the service rate for a queue in a truck loading operation is 2 trucks per hour Using the infinite queuing notion for the models presented in the textbook what is the averag? What is 58 times 12? What does x2 on a lens mean?