In 1991, there were 41,944 shopping centers in a certain country. In 2001, there were 48,389. Write an equation expressing the number y of shopping centers in terms of the number x of years after 1991.

The equation representing  the number  of shopping centers

y = 644.5 x + 41944

Step-by-step explanation:

Given data

In 1991, there were 41,944 shopping centers in a certain country & in 2001, there were 48,389.

Slope (m) =

m = 644.5

Intercept C = 41944

The equation expressing the number y of shopping centers in terms of the number x of years after 1991 is

y = m x + C ------- (1)

Put the values of m & C in equation (1)

y = 644.5 x + 41944

This is the equation representing  the number  of shopping centers.

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.