What numbers multiply up to -72 and add up to -1?

Given: jk ||lm prove: _2 = 27 statement justification 1. jk ||lm 1. given 2.26 = 27 3.22 = 26 2. 3. 4. _2 = 27 4. corresponding angles theorem transitive property of equality vertical angles theorem substitution property of equality

Which of the following is the sum of 3 1/6 + 6 3/8?

Me with these questions , i don’t understand scientific notation!