How many different arrangements of 7 letters can be formed if the first letter must be w or k? (repeats of letters are? allowed)?

The total number of different arrangements of 7 letters that are possible if the first letter will be w or k is:

                        617,831,552

The number of different arrangements of 7 letters can be formed if the first letter must be w or k such that the repetition of the letters are allowed are:

   2×26×26×26×26×26×26

( Since, at the first place any of the 2 letter out of w or k could come up.

and from the second to seventh place any of the 26 letters of the English alphabet may come up )

Hence, total number of arrangements = 617,831,552

7. 153.86 ft

8. 12.56 ft

9. 78.5 m

10. 379.94 in

11. 132.665 m

12. 12.56 yd

13. 226.865 ft

14. 113.04 ft

15. 63.585 ft

16. 254.34 m

17. 50.24 cm

step-by-step explanation:

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i need more info. are you looked to see there mph? how much they deliver? how far they go?

step-by-step explanation: