Help plz plz I only have 30 minutes

50% increase in weight

Step-by-step explanation:

First, write the situation out in an equation:

7/100=10.5/x

If we find the difference assuming 7 is 100% and 10.5 is x%, then we can subtract to find the difference.

Solve this equation for x. The answer would look like this:

7/100=10.5/150

Then, since 150% - 100% is 50%, the answer is a 50% increase.

Hope this helps! Please mark brainliest! :)

the solution is 12x-6y

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8