Answer:
x12
Step-by-step explanation:
When multipling numbers that are the same with exponent you can just add the exponents.
so x5*x7=x12
(It would be subtraction if there was division)
Hope this helped you and feel free to ask questions!

x is adjacent to the missing angle in the other triangle which is <x=66
Answer:
55
Step-by-step explanation:
The total is 2(2x+15) +2x=360.
4x+30+2x=360
6x+30=360
6x=330
x=55
Answer:
r = -189
Step-by-step explanation:
Let's make it easy,
-13=r/9+8
r/9 = -13-8
r/9 = -21
r = -21 × 9
r = -189
Answer:
Step-by-step explanation:
32/105