Hey there!
Assuming you meant

If so, follow these steps so it can be a little bit easier to solve
Firstly, we have to
by
on each of your sides


We get: 
Now, we have
by
on each of your sides


We get: 
± 
Therefore , your answer is:
±
Good luck on your assignment and enjoy your day!
~
He fourth one: 4,5,6,7,8...if it has those two bars || it means absolute value which basically means if its negative you just change it to a posotive :)
Answer: (0.18,0.26)
Step-by-step explanation: I just finished the test
Answer:
a) Yes, the two variables correlated
b) Yes, variation of sugar changes the number of orders for item containing sugar
Step-by-step explanation:
a) Yes the two variables are moderately co-related as the value of co-relation lies between 0.5 and 0.7
b) Yes the variation in amount of sugar leads to variation in the number of orders with sugar.