You multiply by the conjugate to both the denominator and numerator.
After that you can simplify by canceling the 4 and then you are able to simplify the (h) as well.
Answer:
9s+11
Step-by-step explanation:
Combine like terms → (7s+2s and 2+9 = 9s and 11) and boom
Answer:
y=5x+4
Step-by-step explanation:
The grade will round up to around 70 percent the low ones will hold it down