Answer:
10.2 ft
Step-by-step explanation:

64 +
= 169

b=
b= 10.2469
It looks like the differential equation is

Multiply both sides by 1/(<em>x</em> + 1) :

The left side is now a derivative of a product,

Integrate both sides with respect to <em>x</em> :

Solve for <em>y</em> :

Subtract 2.1 from both sides:

Add 1.4y to both sides:

Of course, we can rewrite this as

Divide both sides by 1.4

(24*11)+(14*14)+(7*14)+(8*12)=654
I think that this is the answer!