42 because--------------------------------------------------------------................................
She would have to score atleast a 74 on the test for her average to be 78
I think it's -2 to -1 is the right answer maybe
but i hope it helps u !!
Answer:
94.2
Step-by-step explanation:
Arc length is basically circumference.
Circumference formula: 2πr
All we need is the radius.
Radius = r
15 x 2 = 30 (diameter)
Then we are going to multiply by pi.
Arc length = 30π OR 94.2
Step-by-step explanation:
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