5. Mississippi and Georgia have a total of 21 electoral votes. Mississippi has 6 electoral votes. Use mental math or the guess, check, and revise strategy to solve the equation 6 + g = 21 to find g, the number of electoral votes Georgia has.

 g = 15 . Georgia has 15 electoral votes.

Step-by-step explanation:

Mental math:  How many do I need to make up the difference?

counting by 5s:  5, 10 15, 20.  

6 is one more than 5.

From 5, three more 5's gets us close to 20.  It works.

6 + 15 = 21

b. x + 1

step-by-step explanation:

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the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.