chang wants to know if he is improving his skill on the cello. he created a scatter plot and drew a line of best fit

To round this to the hundredths place, which is the second digit after the decimal, you need to add another zero after the hundredths place since there isn't anything there. Remember, you can add as many zeroes after the decimal point because it won't matter how many zeroes you put after it, 0.85000000 is the same as 0.85. Anyways, the answer would be 446.80, since there isn't anything after the hundredths place.