Last year there 1,435 8th grade students enrolled at your school. this year there are 1,220. what is the percent change in the number of 8th grade students?

Hey there,

Difference = 1,435 - 1,220
                 = 215
% change = (Difference / Original) x 100%

% change = (215 / 1,435) x 100%
                 = 14.98257839721254%
                 = 15%

Hope this helps :D

~Top♥

If you need an equation, it would be y=2x+8, y would be how long it grew, x being weeks.if you need how long he was asleep, it would be 4 weeks if he started with no beard, the equation would be x=8÷2if he did have a beard before hand, the equation would be 2w+x=8