Casey is making a balloon arrangement of latex balloons and mylar balloons. Each latex balloon costs $0.25 and each mylar balloon costs $1.25. The arrangement contains 15 balloons and costs $8.75. How many of each type of balloon was included?

A. Jenny set up a system of equations and got a solution of (5.75, 6.25). What does her solution mean in the context of the situation? Does it make sense?

B. Marie set up a system of equations and got a solution of (5, 10). What does her solution mean in the context of the situation. Does it make sense?

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step-by-step explanation:

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.  

answer: -10

step-by-step explanation:

s(t) = 1 - 10t

s(x) = 1 - 10x

s(x + h) = 1 - 10(x + h)

            = 1 - 10x - 10h

s(x + h) - s(x) = 1 - 10x - 10h - (1 - 10x)

                      = 1 - 10x - 10h - 1 + 10x

                      = -10h

= -10