30. how much does it cost to light a 300-w light bulb for 30 days if the cost of electricity is 7 cents per kwh

You are cycling around europe with friends. you book into a hostel and you ask the owner what the ratio of men to women is currently staying there. there are 24 men and 6 women. what is the ratio of men to women in its simplest form?

Which measure is equivalent to 110 ml? 0.0110 l 0.110 l 1.10 l 11,000 l

Write the equations in logarithmic form 9^4=6,561