Answer:
4 hours
Step-by-step explanation:
set up your equation
money to spend = charge per hour
18 = 4.50x
divide each side by 4.50
x = 4
4 hours
Answer:
The answer is 8.6×10¹⁴
Step-by-step explanation:
You can evaluate it :




Y=-3x+23
distribute -3, get y alone (add 2 to both sides)
So the question tells to express the expression in your problem where N0 is N-naught and the symbol represent the lower case Greek letter lambda. So the best answer or expression would be that the lambda is the wavelength of the expression. I hope you are satisfied with my answer