(2x - 5)(3x^2 - 4x +1)
6x^3 - 8x^2 + 2x - 15x^2 + 20x - 5
6x^3 - 23x^2 + 22x - 5
-3 and 4......................
Answer:
D
Step-by-step explanation:
The y-intercept is the initial amount and the rate of change is the amount she saved each week so that eliminates A and B. Since the y-intercept is 20 the answer is D.
(5x-18)+(4x+7)=180
5x+4x=180+18-7
9x=191
x=191/9
Answer: x=191/9