Lucy is three times as old as Alex.
Lucy is 7 years older than Megan.
The sum of their ages is 126.
Find the ratio of Alex's age to Lucy's age to Megan's age.

Afurniture store has 1,500 chairs in storage. a manager uses three delivery receipts to simulate samples to check 100 chairs and note the number of brown chairs. suppose the actual number of brown chairs is 1,080. about how many brown chairs are

100 points, hi, i’m not sure how to get the equation from the graph and table.

The graph of y = ax^2 + bx + c is a parabola that opens up and has a vertex at (0, 5). what is the solution set of the related equation 0 = ax%2 + bx + c?