50% of the population in alaska lives within a 50-mile radius of anchorage. if the total area of alaska is 586,412 square miles, about what percent of the total land area is within 50 miles of anchorage? i would like to know how to go about solving this problem and the answer.

30 in the diagram line e and made parallel to each other and line p and q are transversal. use properties of special angles formed by parallel lines and their transversals to find the missing angle measures. m< 3=65 m< 15=120 m< 7= m< 4= m< 6= m< 1= m< 16= m< 18= m< 21= m< 10= m< 11= m< 12=

The sales tax rate is 7.25%. how much tax in dollars is added on an item that costs $56.00? a. $4.06 b. $7.25 c. $14.50 d. $60.06

How is this equation completed? i cannot find any examples in the book.