Help me ASAP for brainliest:

Cedric completed the square for the quadratic expression 5x2−40x+15 in order to determine the minimum value of the expression, as shown.

Step 1: 5(x2−8x+3)
Step 2: 5(x2−8x+16−16+3)
Step 3: 5((x+4)2−16+3)
Step 4: 5((x+4)2−13)
Step 5: 5(x+4)2−65
What mistake, if any, did Cedric make?

A. In Step 3, he incorrectly wrote the square as (x+4)2. He should have written x−42.
B. In Step 1, he incorrectly factored out 5. He should have written 5(x2−8x−3).
C. In Step 5, he incorrectly distributed 5 from the parentheses. He should have written 5(x+4)2−13.
D. He did not make a mistake.
E. In Step 2, he incorrectly added 16 and −16. He should have written 5(x2−8x+64−64+3).

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2

Aaron invested a total of $4,100, some in an account earning 8% simple interest, and the rest in an account earning 5% simple interest. how much did he invest in each account if after one year he earned $211 in interest? select one: a. $200 at 8%, $3,900 at 5% b. $3,200 at 8%, $900 at 5% c. $900 at 8%, $3,200 at 5% d. $3,900 at 8%, $200 at 5%

The equation shown below represents function f. f(x)= -2x+5 the graph shown below represents function g. which of the following statements is true? a. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is less than the y-intercept of function g. b. over the interval [2, 4], the average rate of change of f is greater than the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. c. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. d. over the interval [2, 4], the average rate of change of f is less than the average rate of change of g. the y-intercept of function f is the same as the y-intercept of function g.