A proton has a mass of 1.67 × 10–27 kilogram, and an electron has a mass of 9.11 × 10–31 kilogram. Which is greater, the mass of a proton or the mass of an electron? Explain.

Point a is located at (? 5, 2) on a coordinate grid. point a is translated 1 unit to the left and 5 units down to create point a'. which measurement is closest to the distance between point a and point a' in units? a) 4.7 units b) 4.9 units c) 5.1 units d) 5.3 units