Find the measure of angle 1 in each figure

What kind of bond pays interest which is exempt from tax?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0