Beer? at an electronic store? but srsly, 81*.07 is 5.67, total is 86.67
The exponential growth in biology is A=Pert, where "A" is the ending amount of whatever you're dealing with , "P" is the beginning amount of that same "whatever", "r" is the growth or decay rate, and "t" is time. The formula is related to the compound-interest formula, and represents the case of the interest being "compounded continuously".
Answer:
What number is represented by point B = -1
Which point represents the number 2? = C