Let's imagine we enclosed the entire shape in a 15 inch wide, 21 inch tall rectangle, area 315 sq inches.
From that rectangle we have to take away the 3x6 bottom left corner, and a strip 21-6=15 inches long and 3 inches wide on the right.
A = 15×21 - 3×6 - 3×15 = 315 - 63 = 252 sq in
Answer: D. 252 inches squared, last choice
Answer:
0.566666666
Step-by-step explanation:
The axis of symmetry of a parabola in the form

is a vertical line

where k is the x coordinate of the vertex of the parabola.
The x coordinate of the vertex of the parabola is given by

which in your case is

So, the axis of symmetry is the line x=12.
Answer:
30 inches
Step-by-step explanation:
Answer: C. 6 zebra fish, 5 neon tetras. Is $21.60
Step-by-step explanation:
1.85 • 6 = 11.10
2.10 • 5 = 10.50
11.10 + 10.50 = 21.60
$21.60