Answer:
The number of adults is 
Step-by-step explanation:
Let
x------> the number of children
y------> the number of adults
we know that
-------> equation A
-------> equation B
Multiply equation A by 
-------->
------> equation C
Adds equation B and equation C

Answer:
15x+10-8x+2
7x+12
Step-by-step explanation:
I can't draw a picture but the little hand would be on the 6 and the big hand would be on the 1.