Yes, Any consumer electronics that has key input has to have some form of touch sensitive keys
491-216 = 275
There are 491 tenths in 491. This is because one whole number is equivalent to 10 tenths. Therefore, to find the number of tenths in 491, you simply multiply 491 by 10, giving you 4910 tenths.
Yes. 491 is prime.
1-492 = -491
491 + 284 = 775
491 multiplied by 3 is 1,473
491 centimeters = 4.91 meters
491
Itself and 1 because 491 is a prime number
491 metres = 1610.9 feet
0.0143
491 centimeter is 4.91 m