Raul is playing a trivia game. At the end of the first round, he has 7 pounds. During the second round, he loses 15 points.
Part A. Which expressions represent the total number of points Raul has at the end of the second round?

A:7 - (-15)

B:7 + 15

C:7 + (-15)

D:-7 + (-15)

E:-7 - 15

F:7 - 15

(hurry! ) which expression is equivalent to the following complex fraction?

The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.

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.