Select expressions equivalent to the one given below. (8x + 5) – 5(x-2) +17%
A.
22.5x + 15
B. -25x-x-15
C. 25x -x+15
D.
25x + ({x-2)

i did it myself and i got 4.2 (b) hope its right

step-by-step explanation:

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation:

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,