Let a and c be adults and children, respectively. Then:
a+c=500
5a+2c=1540
Solve for a and c
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Multiply the number of sizes by the number of toppings. 3 * 4 = 12 different combinations.
Answer:
The parabola opens upward because the vertex is pointing down.
The x-intercepts are -4 and 8.
The y-intercept is -8.
The equation of the axis of symmetry is 2.
Step-by-step explanation: