Answer:
(14n - 42)*pi
Step-by-step explanation:
Circumference is 2 * pi * r. Since r in this case is 7n - 21, you can multiply r by 2 and pi, giving you (14n - 42)*pi
Answer:
i 25000 cause 250×100 is 25000 ii. 100 cause 10×10 is 100
Step-by-step explanation:
about ii it didnt say anything like the quantity but thats for one tile
Answer:
4 hours
Step-by-step explanation:
42x?=168
?=4
I think its 1000 numbers because there from 1 to 999 there are 999 numbers, and then you add zero because it is also a whole number.
Answer:
9cm 5cm 12cm
Step-by-step explanation:
