Between July 1, 2000 and July 1, 2007, the estimated population of a city declined from 3487 to 2653. What was the percent decrease to the nearest tenth?

  23.9% decrease

Step-by-step explanation:

The percentage change is calculated from ...

  pct change = ((new value)/(old value) -1) × 100%

  = (2653/3487 -1) × 100% = -0.2392 × 100%

  pct change = -23.9% . . . . rounded to tenths

The population decreased by 23.9% in the given time period.

answer is b

step-by-step explanation:

answer: 33 ( approx)

step-by-step explanation:

since, in the linear regression formula, the slope is the a in the equation y = b + ax ( by comparing it with the general equation of line y = mx + c )

where,

here given table is,

price ($), x   :           18         23       25       29       30       33

pairs sold, y :         16         13         10       8         6       2

so, ,   ,   ,

and   ,

thus, slop of the given line is,

⇒  

⇒   ≈ 33