Vlad spent 20 minutes on his history homework then completely solved x amount of math problems that each took 2 minutes to complete what is the equation that can be used to find the value of y the total time that vlad spent on his homework and what are the constraints on the values of x and y

i believe it's a.

i'm not sure on this one, most likely correct.

good luck!

This law is sometimes called the grouping property. as you can see, regardless of how the numbers are grouped, the answer is still 13. the associative law of multiplication is similar to the same law for addition. it says that no matter how you group numbers you are multiplying together, you will get the same answer.