What is the domain of the function represented by the graph? A. all real numbers
B. Negative 4 less-than-or-equal-to x less-than-or-equal-to 4
C. Negative 3 less-than-or-equal-to y less-than-or-equal-to negative 1
D. y less-than 0

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?