Speed of Grace in morning :

Speed in evening :

Average speed :

Hence, this is the required solution.
Answer:
4. U = 54
5. C=80
Step-by-step explanation:
Basically you move the denominator to the other side and multiply. please take note of the signs(positve, negative)
You have to multiply all the numbers to get the exact number and then you have to divide and multiply
Answer:
X= -2/6y +3
Step-by-step explanation:
-6x - 2y= -18
add -2y to both sides
-6x=2y -18
divide by -6 to both sides
X= -2/6y + 3