Step-by-step explanation:
The ones that apply are:
1) 10t + 5s = 190
2) t + s = 30
No. 1 is because each tumbler is $10 making 10t and each hat is $5 making 5s and the total sales is $190
No. 2 is because the total tumblers and hats sold add up to 30
Sometimes all you need is a different perspective :)
Hope this helps!
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