8y+7x=30
8y+3x=14
make x the subject from y = x^2-2x
379749833583241 x 19487171
437400 {1-10/100}
7x+5y=8
3x-2y=-9
712-218
C/2+C/4-3=2
5.2/x=y
y*0.15=3.6
A stack of 250 sheets is 1.5 cm thick , how thick is stack of 400 sheets ?
A stack of 250 sheets is 1.5 cm thick
how thick is 400 sheets?
