Tom wants to find a number so that the sum of the digits of a two-digit number is 7. When reversing the digits, the number should increase by 27. He writes a computer program to find the number. How will the program represent the number? A is used to represent an unknown number.

The place where the extended axis of the earth would touch the celestial sphere is called the celestial

Scientists have changed the model of the atom as they have gathered new evidence. one of the atomic models is shown below. what experimental evidence led to the development of this atomic model from the one before it? a few of the positive particles aimed at a gold foil seemed to bounce back. the colors of light emitted from heated atoms had very specific energies. experiments with water vapor showed that elements combine in specific proportions. cathode rays were bent in the same way whenever a magnet was brought near them.

Fall protection, confined space entry procedures, controlled noise levels, and protection from chemical hazards are some of the things that contribute to a safe and