M+m+12=22 what’s the value of M

How do you multiply a mixed fraction by a regular fraction

In the triangle abc< angle c is a right angle. find the value of the trig function indicated. find tan a if a =12, b=5 a. 13/12 b. 12/13 c. 5/12 d.12/5

Issof claims that the scale factor is 1/2. which statement about his claim is correct