Answer:
a. 19
Step-by-step explanation:
5/6x-1/5x=19
5/6(30)-1/5(30)=19
25-6=19
19=19
?/30(30)=19
19/30(30)=19
19=19
I'm not sure if this is exactly what you're looking for, but 19=19 if you plug in 19 for the box (and x=30 because of the first section, I'm guessing)
Answer:
m < 3
Step-by-step explanation:
7m-3m - 6 < 6
4m < 6 + 6
4m < 12
4m ÷ 4 < 12 ÷ 4
m < 3
I think a= 4 b:1/2 that what i got
Answer:
37.7
Explanation:
Just look at the number behind it if its a 5 or above it rounds up if not it stays the same and the ret of the numbers are zeros
Answer:
Only one solution 
Step-by-step explanation:

Multiply equation
by 

Now from equation 
equation

Put the value in equation 

hence only one solution exists
.