If 5 becomes 11 and 12 becomes 25, what does 15 become?

31.

Step-by-step explanation:

5+5 = 10 + 1 = 11

12 + 12 = 24 +1 = 25

15 + 15 = 30 + 1 = 31

I don't know I tried to see if that was the pattern. It checks out math wise.

31

Step-by-step explanation:

5---11

12---25

hmmm

isn't that jsut x * 2 + 1?

s

15 would be

15*2+1

which is 31

b

step-by-step explanation:

b

start with a line segment pq that we will copy. mark a point r that will be one endpoint of the new line segment. set the compasses' point on the point p of the line segment to be copied. adjust the compasses' width to the point q. the compasses' width is now equal to the length of the line segment pq.

step-by-step explanation: