Using the given table, give the percentage associated with each unit of standard deviation in the standard normal curve to the nearest hundredth. (PLEASE EXPLAIN YOUR ANSWER!)

Standard Deviation | Percentage Area
-1 to 0 _%
0 to +1 _%
0 to +2 _%
0 to +3 _%
-1 to +2 _%

Marco is studying a type of mold that grows at a fast rate. he created the function f(x) = 345(1.30)x to model the number of mold spores per week. what does the 1.30 represent? how many mold spores are there after 4 weeks? round your answer to the nearest whole number. 1.30 represents the number of mold spores marco had at the beginning of the study; 985 mold spores 1.30 represents the number of mold spores grown in a given week; 448 mold spores 1.30 represents the 30% rate of weekly growth; 345 mold spores 1.30 represents the 30% rate of weekly growth; 985 mold spores

Which angle of rotation is an angle of rotational symmetry for all figures?

What is the definition of a surd. give an example.