9
Step-by-step explanation:
10+5+8+13=36
36/4=9
add up all the number's, the divide by how many number's that were used in the equation. in this case, four numbers.
2/3x + 7 = 29
step-by-step explanation:
two thirds = 2/3
plus a number = x
at least 29 = 29
there for you should get 2/3x + 7 = 29
im not sure what this means: mc011-7.jpg