Answer:
an =a1+(n−1)d
Step-by-step explanation:
Answer:
r = 18 cm
Step-by-step explanation:
The formula for the circumference of a circle is 2πr.
Hence,
2πr = 36π
r = 18 cm
If you're trying to say what's 90% of 63, you divide 63 by 10 which is 6.3 then times by 9 which is 56.7
40 because the three in the units place is smaller than 5 so you round down.
