Find an explicit rule for the nth term of the sequence. -4, -8, -16, -32,

Which function is represented by the graph

Mr switzer needs to buy new 1-foot tiles to cover his bathroom floor. the floor is 12 feet long and 8 feet wide. each square foot of tile will cost $1.79. in dollars what will be the total cost of the tiles he needs to buy.

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?