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The function can use all values of x which means x is in between -inf and +inf. The first option expresses this.
Well, we know the amount of cups of sugar it calls per 1/2 teaspoon, so all we need to do to find the amount of cups of sugar per teaspoon is multiply by 2, since 1/2 teaspoon * 2 = 1 teaspoon.
2/3 * 2 = 1 1/3
The unit rate is 1 1/3 cups per teaspoon
Hope that helped =)
Answer:
so if you multiple4.8 percent by 3,000 u get 144 and then u divide by 3 and that u u 48 dollars per year