9. The linear equation y = 8x represents
the cost y in dollars of x pounds of dried
apricots. Which ordered pair lies on the
graph of the equation?
A (2,8)
B (2, 18)
C (3, 24)
D (3, 32)

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

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.

What is the value of the discriminant of the quadratic equation -2x = -8x + 8 and what does its value mean about thenumber of real number solutions the equation has?