Yeah there all right but I have a little hinch for the last and first one
Answer:

Step-by-step explanation:
The function is shifted 4 units right.
The value of x in the function is subtracted from 4, because this is a horizontal translation.


Answer:
Test A: 40 words per minute
Test B: 54 words per minute
Test C: 44 words per minute
<em><u>Test B has the highest unit rate</u></em>
Step-by-step explanation:
Test A divide 30 by
(30/0.75=40)
Test B divide 78 by
(78/1.5=52)
Test C divide 99 by
(99/2.25=44)
<u>Hope this helps :-)</u>
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40 hrs at 8 bucks, 40*8 or 320, now, is 2 workers, so 320+320 or 640
so... how much is 640 from 2000 in percentage? well, if we take 2000 as the 100%, then

solve for "x"
Answer:
45
Step-by-step explanation: