Area and perimeter of irregular shapes???

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

Organic apples are on special for $1.50 per pound. does total cost vary inversely or directly with the number of pounds purchased? find the cost of 3.4 pounds of apples. a. inversely: $5.10 b. directly; $5.10 c. inversely: $2.27 d. directly; $2.27

Simplify using positive exponents only.