1^2 = 1
2^2 = 4
3^2 = 9
n^2 = 10000 --> n = 100
the number 10000 is on place 100.
50 + 20x
let's call the number of weeks after he started his saving account x. then, we starts at 50, and every week, he gains 20. because there are x weeks, the answer is 50 + 20x.
range provides provides context for the mean, median and mode. to find the mode, identify which value in the data set occurs most often. range, which is the difference between the largest and smallest value in the data set, describes how well the central tendency represents the data.
y = (...