angad was thinking of a number. angad halves the number and gets an answer of 78.5. form an equation with x from the information​

Do some research and find a city that has experienced population growth. determine its population on january 1st of a certain year. write an exponential function to represent the city’s population, y, based on the number of years that pass, x after a period of exponential growth. describe the variables and numbers that you used in your equation.

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Combine like terms to make a simpler expression 3z+z