Tim counted 12 nails to fix his wagin he used only 1/2 of them how many did he use\

6

Step-by-step explanation:

The answers right because, if he used only twelve of them and he used 1/2 of twelve then we just divied 12 by 1/2. And that means we are dividing 12 by 2, (because 1/2 equals 2,) And that equals 6. To make sure we are correct we can multiply 6 by 2 and that equals 12.

Hope This Helps!

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .