Step-by-step explanation:
hey, hope this helps/ is right :))
Answer:
a. 62
Step-by-step explanation:
use the Bodmas method
=3×9-5+20×2
=<u>62</u><u> </u>
You work out unit rates by making the denominator 1
So for this, our equation is gonna be
Firstly, reverse the signs in (x+2) 
Next, change 3x^-4 to 3/x^4, and your answer will be 
Your answer would be step two. If you follow PEMDAS then you would have to do your parentheise