Answer:
the circumference of Clare's circle is 75 cm
Step-by-step explanation:
The circumference of a circle is the length of its perimeter.
Let's define circumference as "C". We can calculate the circumference of a circle with following formula:

where π is pi, and d is diameter.
Then, to know Priya circle diameter;

Clare's circle has a diameter of 3*7.96=23.88cm
Next we calculate the circumference of Clare's circle:

Answer:
4 1/2
Step-by-step explanation:
Multiply 2x2=4 and then put the half next to it
Answer:
5y·2x=21
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Step-by-step explanation:
using the formula above,you will find the equation 5y–2x=21