What is the best function to use when adding the same number many times?

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?

These box plots show the number of electoral votes one by democratic and republican presidential candidates for the elections from 1984 through 2012. which statement best compares the spread of the data sets

At oaknoll school, 90 out of 270 students on computers. what percent of students at oak knoll school do not own computers? round the nearest tenth of a percent.