The following three shapes are based only on squares, semicircles, and quarter circles. Find the perimeter and the area of each shaded part.

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

Which ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15