If a(-1,3), b(4,4), c(8,1) , then classify abc as scalene, isosceles, or equilateral.

For this case we use the formula of distance between points.
 We have then:
 d = root ((x2-x1) ^ 2 + (y2-y1) ^ 2)
 For AB:
 AB = root ((4 - (- 1)) ^ 2 + (4-3) ^ 2)
 AB = 5.099019514
 For AC:
 AC = root ((8 - (- 1)) ^ 2 + (1-3) ^ 2)
 AC = 9.219544457
 For BC:
 BC = root ((8-4) ^ 2 + (1-4) ^ 2)
 BC = 5
 We observe that it has three sides with different dimensions, therefore, the triangle is scalene.
 
 Scalene

i think there was a typo. you wrote pat brings 3 quarts of ice-cream to the party. each serving of ice-cream is 1 6 quart. how many total servings of ice-cream does pat bring to the party? i think the bold is supposed to be 1/6. so 1 quart of ice cream = 6 servings. 6 * 3 = 18.

the answer is 18.