Triangle ABC has vertices A(3, 1), B(8, y), and C(4, 6). The area of the triangle is 12 square units. y=? The perimeter of △ABC is ? Units. Round your answer to the nearest tenth of a unit.

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?