3. If 3, 12 and 28 are in proportional find the first proportional. 4. If A = {2,4,6,8,10,12} ,B = {3,6,9,12,15} and C = {1,2,3,4,5,6,7} then find
(A ∪ B) ∩ C .

The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students

What is the equation of the line in point-slope form? y+ 4 = 1/2(x+4) y-4 = 1/2(x + 4) y-0 = 2(x - 4) y-4 = 2(8-0)