1. 462.25 × 24 × 60 = 665640
2.
[tex]100000 \leqslant 75x - 25x + 10000[/tex]
[tex]100000 \leqslant 50x + 10000[/tex]
[tex]90000 \leqslant 50x[/tex]
[tex]1800 \leqslant x[/tex]
[tex]x \geqslant 1800[/tex]
3. you have to sub first so
[tex]3 + \frac{x}{2} = 10[/tex]
given
x/2 = 7
subtract
x=14
multiplication
