Answer:
Samantha worked 26 hours and Adriana worked 13 hours.
Step-by-step explanation:
Let s = the number of hours that Samantha worked
Let a = the number of hours that Adriana worked
s = 2a
s + a = 39
2a + a = 39
3a = 39
a = 13
Answer: 
Step-by-step explanation:
The area of a rectangle:
×

×
× 

-Result:

Answer:
75% of 124 is 93.
Step-by-step explanation:
I hoped this helped ^^