To convert to scientific notation, start by moving the decimal place in the number until you have a coefficient between 1 and 10; here it is 3.45. The number of places to the left that you had to move the decimal point is the exponent. Here, we had to move the decimal 4 places to the right, so the exponent is -4.
2340000 = 2.34 x 10^6
0.000034= 3.4 x 10^-5
Xy = 12 because if you look at the pattern the top one is 16 and the bottom one is 8 so the middle of those would be 12.
2/3 , 3/4 7/12 there you go
Since the equation for solving circumference is 2

r, you can see that 2

r = 46. Dividing 2

on both sides will give you r, or the radius.
Hope this helped! :)
Answer:
five and forty-six hundredths
Step-by-step explanation: