If two is subtracted from four times a certain number, the result is 18. Find the number.

5

Step-by-step explanation:

4x-2=18

4x=20

x=5

Therefore your answer is 5

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

the function makes a strait line horizontally with no x intercept but a y intercept at 9.