Answer:
1.68 gallons of gas
Step-by-step explanation:
0.4*4.2=1.68
Given equation is : 11x - 2 + 15 = 8 + 7 + 9x
Solving this by grouping like terms on one side.




Hence, this equation has one solution.
2 = 1 hour
x = 6 1/3
2 * 6 1/3 = 12 2/3
Ok so this person was paid $422.75 this week for working one week. $42.75 though, was added onto her normal paycheck because she worked overtime. So we subtract the $42.75 from the $422.75 to get $380. So if she made that normal money by working for 40 hours we need to find how much money she makes in one hour. SO we just do 380/40 to get $9.50 per hour
Hope that helped.... If i explained it weird and you still don't get it PM me and i can try to reexplain :)