So first you find 10% which is 34.5
Then you multiply 10% by 4 to get 40% which is = 138
The ounces of cheese Ellie uses to make tacos is 2
What is a unitary method?
The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Calculation :
1 pound = 16 ounces
Total cheese Ellie has = pound
Cheese required to make tacos = × = pounds
Ounces of cheese required to make cheese are × 16 = 2 ounces
learn more about the unitary method here :
brainly.com/question/17110989
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Ok so the first step to solve it is subtraction then it’s multiplication then additions