20 + 10 - 31 + 30 - 5 = 24
32+14+20+18+16+31+21+16=168
1 + 10 + 20 = 31
$31.00 + (20%) = $37.20
55 + 34 + 31 + 27 + 21 + 21 + 20 + 17 + 15 + 15 = 256
It is 31/20 or 1.55
20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 = 400.
(13+47+31+10+20+50+36+54+122+4)/60==(13+47+31+[10+20+50]+36+54+122+4)/60 =(13+47+31+80+[36+54]+122+4)/60=([13+47]+31+80+90+122+4)/60=(60+31+80+90+122+4)/60=(31+122+4+60+80+90)/60=(153+4+60+80+90)/60=(157+60+80+90)/60=(157+140+90)/60=(157+230)/60=387/606 min. 27 sec.
209 Having a calculator helps.
The mathematical statement 31 plus 31 would have an answer of 62.
4(3b - 5) < -31 + 12b12b - 20 < -31 + 12b, this is not true because -20 > - 31, so that the solution for the given inequality does not exist.
20% of 31= 20% * 31= 0.2 * 31= 6.2