9/16 = x/12
x-3/18 = 12/9
7/11 = 18/x+1
3x-4/14 = 9/10
simplify

Step-by-step explanation:

9/16=x/12

cross product

16x=9*12

16x=108

x=108/16

simplify

x=27/4

x-3/18=12/9

x=12/9+3/18

x=24/18+3/18

x=27/18

x=3/2

7/11=18/x+1

18/x=7/11-1

18/x=7/11-11/11

18/x=-4/11

x=18/(-4/11)=(18/1)(-11/4)=-198/4=-99/2

x=-99/2

i think that you should ask google for the answer to that problem because if we don't know it google does

r and t.

both are 64 degrees.