Answer:

Step-by-step explanation:
Given


Required
Determine the radius
Circumference (C) is calculated as:

Where r represents radius
Substitute values for C and 


Multiply through by 7/44





<em>Hence, the radius is 35cm</em>
Answer: C
Explanation: We need to combine like terms, which means 7a and -12a and -8 and 4
7-12=5 and -8+4=-4
The computation shows that the number of possible ways will be 12.
<h3>How to calculate the value?</h3>
From the information given, Mary has four t-shirts-T₁, T2, T3, and T4, and three pairs of jeans-J1, J2, and J3.
Therefore, the number of possible ways that she can choose her outfit will be:
= 4 × 3 = 12
In conclusion, the correct option is 12.
Learn more about computations on:
brainly.com/question/4658834
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Draw triangles within the ramps and since they are right triangles, use the pythagorean theorem based on what was given and solve