Idon't understand this problem. i would love it if someone could explain this to me! you!

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply

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.

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.