The amount of money americans spent on certain sporting equipment from 2004 to 2009
can be modeled by y = 8.5x + 350.5, where x represents the number of years after 2004 and
y represents the amount spent on equipment in millions of dollars. the actual data are graphed
here.

There is no association.

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )

Ibelieve the answer is b. y=0 would make the line horizontal across the x.