Kenny's weight is 6/7 times melvin's weight what is the ratio of kenny's weight to melvin's weight? write answer in fraction form.

Me n o w. i need t h i s. 10 points

Atorch and a battery cost 2.50 altogether.the torch costs 1.50 more than the battery.what fraction of the total price is the torch? give your answer in its simplest form.

Atruck can be rented from company a $50 a day plus $0.60 per mile. company b charges $20 a day plus $0.80 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and company b are the same