Find the product mentally.
(2j + 7)(2j - 7)
a: 4j2 + 49
b: 4j2 - 49
c: 2j2 - 28j - 49

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.

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.

What is the maximum of the sinusoidal function