Can some answer pls.

Agrain trader buys the following amounts from three suppliers: 3,200 pounds, 5,100 pounds and 700 pounds. what is the total weight of his purchase?

For g(x) = 5x - 3 and h(x) = [tex]\sqrt{x}[/tex], find (g · h)(4)

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table