A stream contains 40% trout, 25% perch, and 35% bass. A fish is selected at random from the stream.

Find the probability that the fish is either a trout or a perch.

(A) 0.75 (B) 0.65 (C) 0.60 (D) 0.15 (E) 0.10

b. 18

step-by-step explanation:

so the equation for this is:

ab^2=ac⋅ad

ab being the top length of 6 and ac being the length of 2 and ad being the length of x. let's plug into the equation:

6^2 = 2x

now lets just solve for x:

36 = 2x

18 = x

i hope that !

391.6 is the correct answer