Ahalf-dollar has a diameter of about 31 millimeters. about how long would a row of 56 half dollars be?

Answer:

A row of 56 half dollars will be 1736mm  long

Explanation:

Given:  

The diameter of half dollar = 31mm

Solution:

If we put two half dollar in a row then the row will become

But we put another two half dollars  in a row then row will be long  and becomes=

Similarly  

If we put 56 dollars in a row then row will be long and becomes = = 1736mm

y = - 6

step-by-step explanation:

given the point (- 2, y) lies on the graph then it is a solution of it's equation.

substitute x = - 2 into the equation for value of y

y = 3(- 2) = 3 × - 2 = - 6

the point on the graph is (- 2, 6)