Answer:
bookstore A
Step-by-step explanation:
im not sure
When faced with an unknown variable in a maths problem, it is advised to find the subject formula and then use it to solve the equation to find the answer.
<h3>What is an Unknown Variable?</h3>
This refers to the type of variable in a given equation that has to be solved for because its properties or value is not known.
Hence, we can see that when faced with an unknown variable in a given math problem, it is better to find the subject formula, then input the value of this into an equation, to find the value of the variable.
Read more about unknown variables here:
brainly.com/question/2133551
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Answer:
7 yellow triangles for each blue triangle
Step-by-step explanation:
the ratio of yellow triangles to blue triangles is
42 / 6 or
(42/6) / (6/6)
7 / 1
7
Answer:
54-37=17
then
62-17= 45
Therefore, Natalia earned $45.