The nth term of an AP is given by 2n +9 find the first term

What is the area of the triangle 10 13 12

How many grams the dog will eat in 3 days?

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