So you multiply 13 by each variable and it’s coefficient.
13n+52+91m
we are rounding to the tenths place so we need to look at the hundredths place 5 and higher it goes up 4 and below it remains the same
15.50 thru 15.54 would round to 15.5
15.45 to 15.49 would round to 15.5
so 15.51 rounds to 15.5
15.49 rounds to 15.5
15.48 rounds to 15.5
