Answer:
SOHCAHTOA
SOH=sine is opposite over hypotenus
CAH=cosine is adjacent over hypotenus
TOA=tanget is opposite over adjucent
12x28=336
12x32=384
336+384=720 square^2
(a). The element a₂₁ is the number of boys enrolled in Lacrosse.
(b). The address is a₁₂.
(c). [196 174]
[136 169]
[214 242]
(d). The matrix represents the number of boys and girls from towns A and B enrolled in different sports classes.
(e). 1.125 A = [108 90 ]
[72 99 ]
[117 135]<span />
1-0.15=0.85
36.21/0.85=42.6=ANSWER
12x2= $24
24+28+45= $97
So $97 is 100%
So 100%-30% =70% (30% off)
(note: 70% = 70/100 = 0.7)
97 x 0.7 = $67.90