Answer:

Step-by-step explanation:

Calculate the derivative of the function:

Calculate the zeros of the derivative:

Let's check the derivative sign:

Sketch a parabola open down
(before the brackets there is the number -3 < 0)
Look at the picture.
Where the derivative is negative, the function decreases.
Where the derivative is positive, the function increases.
Therefore your answer is:

Y=65x+5, i think but I don’t know for sure
1. Is $235,000+ 4.2% =244,870
4.2% out of $235,000 is $9,840
Where i got $244,870
12x20=240
So 20 years= 240 months
So I divide $244,870 by 240 months
is $1,020.291667
Which is $1,020.29 cents.
If you multiply that $1,020.29x240=$244,869.60 round to nearest dollar 60 cents is over 50 which would make it $2444,870.
A pentagon is a 2d shape, so no, it can't be a prism or a pyramid.