Electron is organizing the bookcase in the school library. He makes sure each shelf has 15 books on it. There are 9 shelves of math books and 6 shelves of science books.

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality

Find │7│. a. 1 over 7 b. –7 c. 7 asap i always mark brailiest who me so