Ajar contains nickels and dimes. there are 20 coins in the jar, and the total value of the coins is $1.40. how many nickles and dimes are in the jar?

Francis is getting new carpet tiles in his living room and den. his living room and den are connected. he needs to figure out how much carpet he needs and the cost involved. if each tile costs $2.00 per sq ft, how much would it cost to have new tile put in the den? a) $24 b) $36 c) $48 d) $54 plz awnser soon