I think its the first and fourth tv
I believe the answer could be
h = -16t^2 + 32t + 12
---------------------------
t<span />
Circumference of a circle is 2(pi)(r)
2(3.14)(7)= 43.96
So the answer is B
He would have $4131 left from $5400 with a decrease with 23.5%
Lauren =l
David=d
Bethany's =x
Amanda =y
l=x+13
d=y+11
lx=2y
<span>(x+13)x=2y
</span>
or
(x-20)(l-20)=d
<span>(x-20)(x+13-20)=y+11 </span><span>
</span>
so I believe its b
Hope this helps :)