Y=Mx+B is the slope for and then go from there
See the picture attached to better understand the problem
we know that
If two secant segments are drawn to a <span>circle </span><span>from an exterior point, then the product of the measures of one secant segment and its external secant segment is equal to the product of the measures of the other secant segment and its external secant segment.
</span>so
jl*jk=jn*jm------> jn=jl*jk/jm
we have
<span>jk=8,lk=4 and jm=6
</span>jl=8+4----> 12
jn=jl*jk/jm-----> jn=12*8/6----> jn=16
the answer isjn=16
Wait if he worked 1 hour this question still makes no since
Multiply by for to get t alone 9 times four is 36
27.99x.075= 2.09925 or 2.10 Rounded
27.99+2.10= $30.09