If the points (-4, 1) and (2, 1) are the endpoints of a diameter of a circle, where is the center?
a)
(-7, 1)

b)
(-1, 1)

c)
(1, -1)

d)
(5, 1)

What is the equation and solution for the sentence? the sum of a number and thirty-one is one hundred thirteen. write the equation as n-31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and add 31 to both sides. the answer is 144. write the equation as n-31=113 and add 31 to both sides. the answer is 144.

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Acabinmaker buys 3.5 liters of oat varnish the varnish cost $4.95 per liter what is the total cost of 3.5 liters