earnings = $7 per hour
He needs at least $230 . This means he needs an amount greater than or equals to $230.
let
t = hour many hours he works
Therefore,


He needs to work approximately 33 hours or more to get at least $230 for his sterio. This means t is greater than or equals to approximately 33.
If 100x10=1000 you can do 7000/100= ?
the correct solution is (-1,-2), angelicas answer is incorrect, comment if something confuses you
29.1 bc the hypotenuse is always the longest side