Echo Tech has introduced a new model of their camera phone. The number of sales of the phone x weeks after the beginning of the initial sales promotion is given by S(x)=50e0.12xx−50, 1≤x≤20. Find the rate of change of the company's sales 3 weeks after the beginning of the promotion. Round your answer.

“ a line segment that has the endpoints on the circle and passes through the midpoint is called the diameter. the diameter is twice the size of the radius. a line segment that has its endpoints on the circular border but does not pass through the midpoint is called a chord. a circle is the same as 360 small circle up the number 0 . i hope this .

answer: sorry i dont really know but can we talk all my friends r gone and im bored

step-by-step explanation: