Isabella has twice as much money invested at 4% as she has invested at 3%, and she has $500 more invested at 5% than she has at 3%. if the annual income from these three investments is $2025, how much does she have invested at 4%

f(x) has value 150 at x= 0

and 0 at x= 3

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

all the angles opposite to the angle 150 would be 150 and all the angles that are next to 150 are 30 because they equal 180 it you add it up.

step-by-step explanation: