Answer:
[tex]25+15x\geq100[/tex] where x=weeks x=5 or more
Step-by-step explanation:
he needs $100 dollars, so you have to be greater or equal to that, so that is where you start. he already has 25 dollars, so you add that into the equation opposite the 100. you then show that he earns $15 dollars per week, hence 15x, you can then solve by subtracting the 25 over, wich gives you [tex]15x\geq 75[/tex] you then divide 75 by 15 and get 5 weeks.
