Math help? Asap please?

Posted on 2016-02-20 14:12:00 in Math by JIM

Okay one is a graph about money. 

Kim currently has $25 and decides to save $10 per week from her weekly babysitting job. 
Jenny currently has $160 and decides to spend $5 per week on entertainment. 

which is y=10x+25 for Kim 
and y=-5x+160 for Jenny 

And 3 probs with this, How long will it take Kim to have $50? (I REALLY had the wrong calculation) And who has more money after 10 weeks and 15 weeks? 
I corrected mine, but I need to show proof and I got those 3 wrong. (I want to know why Kim has more in those weeks.)

Update: OH CRAP BASKETS I meant $150!!! sorry!!! I guess I didn't put the one...

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