Answer:
GCF=2 LCM=140
Step-by-step explanation:
H represents the number of hours:
10h + 40
(40 represents, well $40)
Numerical methods; Rearrange your equation; Find the negative root of fact equation. Then you have your answer.
Answer:
4 
Step-by-step explanation:
1+1=2 and 1
+ 1
=2
2+2
= 4
1st Question:
X = 18
2nd Question:
X=20