4 more than the product of a number and 9 is 12.

4 + 9x =12

if you want it solved

4+9x =12  

-4       -4           first subtract the 4 from both sides

9x=  8               Then divide 9 on both sides

/9     /9

x= .8 repeating

ask the math teacher she or he would know lol.

step-by-step explanation:

t= half of the arc subtended by t.

r= half of the arc subtended by r.  

t+r= half of the arc subtended by t + half of the arc subtended by r= half of 360=180

step-by-step explanation: