Will mark a fishery biologist captures, tags, and sets free 100 lake trout. later, she captures 70 lake trout, of which 32 have tags. the biologist tags all the untagged fish and sets them free. a. estimate the population. b. a week later, the biologist captures 123 lake trout, of which 74 have tags. estimate the population. c. how does the second capture affect the estimate of the lake trout population? explain. d. which estimate do you think is more accurate? explain. answer only if you know the answer. lame answers will be reported.

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.