The temperature falls from 3°c to -4°c. what is the difference in these temperatures?

7°C

Step-by-step explanation:

1. Set up the equation. 3°C-x=-4°C.

2. Isolate x. So, subtract 3°C from both sides. -x=-7°C.

3. Divide both sides by -1. x=7°C.

y = 0.77(x)

step-by-step explanation:

the jacket retains this value after 23% cut or retains 77% of original value. plug original 87 jacket price for x and the remaining value should be y.

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.