Marten bought 7 pairs of socks for $3 each, and a sweater for for $12. Then he bought a $5 coffee, what was the change in
the amount of money Marten had?

The total amount spent would be $38

Step-by-step explanation:

Because he bought 7 pairs of socks (each costing $3) for $21, a sweater for $12 and a $5 coffee. If we add the $21 (The cost of the socks) to the $12 (the cost of the sweater) and the $5 (the cost of the coffee) the total amount spent is $38. To find out the change given subtract $38 from the money he originally had

i think is g(1)=-1.

hope that i can