Answer:
it is 25 as you go down
Step-by-step explanation:
97, 86, 75, 64, etc go in the sequence
I think this is correct
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The correct answer 19.42
circumference of a circle= 2(3.14)r
2(3.14)(3)=18.84 but its half a circle so divide by 2 18.84/2=9.42
9.42+6+4=19.42
The standard form for 4.9x10^8 is 490,000,000. You can obtain his number by taking 4.9 and moving the decimal 8 spaces to the right since the 10^8 has a positive 8 number. If the 8 was a negative number, then you would move the decimal 8 spaces to the left.