HELP PLEASE What is the mean of the data set shown?
A. 53
B. 3
C. 5.3
D. 1.36

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

for future students the answer is b

hope i

-lavira: )

hello,

as we don't know if g(x) is continue,

answer b

f(x)=2x²-8x+1=2(x²-4x+4)+1-8=2(x-2)²-7

vertex is (2,-7) ( a minimum since coefficient of x² is > 0)