The third choice is very useful. It's valid because two things that are both equal to 'y' are equal to each other, and it can be easily solved to find 'x'.
Go on desmos dot com; it lets you graph equations. Graph those and see which matches your picture.
Answer:
1
Step-by-step explanation:
1^3
This is 1 multiplied by itself 3 times
1*1*1
1
<span>212 -(72 divided by 2)=</span>212-36=176
75 km divided by 5 litres = 14 km
I hope this is right.