A 12% brine solution was mixed with a 16% brine solution to produce a
15% solution. How much of the 12%

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50

idk

cfgghbjn bvcdftfghjnbgvfcdrtrfytgyuhuji

b. 2 and 4

step-by-step explanation:

i think the answer is b. i hope i !