When we multiply a number by a positive power of 10, we move the decimal point to which direction? A. left
B. right
C. either
D. we don't move the decimal point​

C

Step-by-step explanation:

It goes to the left when multiplied with positive 10

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)