What is the measure in degrees of angle ABC

No links please:)

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?

Which of the following statements is true? a. the irrational number system is not closed under multiplication, because the product of two irrational numbers is always a rational number. b. the irrational number system is not closed under multiplication, because the product of two irrational numbers is not always an irrational number. c. the irrational number system is closed under multiplication, because the product of two irrational numbers is always an irrational number. d. the irrational number system is closed under multiplication, because the product of two irrational numbers is always a rational numbers. reset submit

On which number line are -3 and its opposite shown