Yes, it is 0.09 grater that 10.01
C=dπ and r+r=d so 3+3=6 and 6π≈18.84 so the circumference would be 18.84
Substitute y=4x to the second equation:
x^2 + (4x)^2 = 17
x^2 + 16x^2 = 17
17x^2 = 17
x^2 = 17/17
x^2 = 1
x = 1 and -1
When x=1, y=4(1) = 4
When x=-1, y=4(-1) = -4
Thus the solutions would be (1,4) and (-1,-4). That would correspond to D. and A.
32 quizzes. If you make a proportion of quiz/weeks it would be 16/4 = x/8. Multiply by 2.