Assume that an int variable x that has already been declared, and initialized to a non-negative value. write an expression whose value is the last (rightmost) digit of x.

We know that an int variable, x, has been declared

It has been assigned a non-negative value

We need to write an expression that extracts the rightmost digit of x

The logic for doing so would be to divide the number by 10, and checking the remainder. The remainder will always yield the rightmost digit. In case the number is a multiple of 10 then the remainder would be 0 (which would be the rightmost digit of the number)

So we can do so by:

int y = x % 10;

% is the modulo function, which returns the remainder after carrying out division

we have declared y to be int, as % will always return int values.

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.

can i see a photo of the question so i can you?