In the diagram below np is tangent to circle o. np = 20 and op = x+4. no = x. solve for the value of x, and the length of op.

We know that

applying the Pythagorean theorem
OP²=NO²+NP²
(x+4)²=x²+20²> (x²+8x+16)=x²+400> 8x+16=400
8x=384> x=48 units

OP=x+4> OP=48+4> OP=52 units

the answer is
x=4 units
OP=52 units

I’m confused as to what you are asking 66 2/3 percentage wise

2.4+3.2t. you get the answer by adding the ones with variables and ones without