Find the sum of -3a + 2 and 5a - 3

Solve the equation 3x2 + 19x + 9 = 0 to the nearest tenth.

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary