A snail moves at n centimetres per hour. A second snail moves 4 centimetres per hour faster than the
first snail.
Which of these expressions would represent the time
taken for the second snail to travel one metre?
100
100
1
n+4
1
n-4
n+4
n-4

1st one

Step-by-step explanation:

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.

christopher is 272,195 year old

step-by-step explanation: