Answer:
Step-by-step explanation:
first do this
1 meter = 100 centimeters
2.5 meters = 250 cm
If you use 50 cm, then you have
2 meters or 200 cm left
You want to find the time <em>t</em> such that

Divide both sides by $200 :

Take the logarithm of both sides:

Divide both sides by 0.04 and solve for <em>t</em> :

32 but make sure it’s emedicpend PAS
Step-by-step explanation:
he get one hour=15$
he get bonus end of the month=85$
- total 685$- bonus 85$=600$
- 600$÷one hour 15$= 40 hours