Clear parentheses and combine like terms:

Asquare parking lot has 6,400 square meters what is the length in meters

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )