What is 52,437 rounded to the nearest thousand?

 52,000

Step-by-step explanation:

We have to look at the number in the hundredth place and if it is less than five we round down, but if it is five or more, we round up.

In this case, since we have 52,437, the number of hundreds is 4, so we have to round down. 52,000.

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315