A student earned an 80 % on a math test that had 25 problems . How many problems on the test did the student earn

20 problems

Step-by-step explanation:

There were 25 questions in this test.

The student got 80% out of these so the problems that the students got right were:

= 80% * 25

= 20 problems

the answer is 37

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.