Answer:
A
Step-by-step explanation:
-7x+9y=-18
-2x-9y=18
-9x (y’s cancel)=0
X=0
The answer is 51/40=1 and 11/40
8 caps => 4 balls
6 caps => (6 x 4)/8 = 24/8 = 3 balls.
Area of trapezoid formula:
A = 1/2(b1 + b2) h
A = 1/2(2.4 + 9)(8.2)
A = 1/2(11.4)(8.2)
A = 46.74 ml^2