How do you raise 15 tent and 71 in standard form

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.

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120