What is the price of a $25 shirt after a 25% discount?

$18.75

Step-by-step explanation:

Convert 25% to .25

Multiply 25 x .25

25 x .25 = 6.25

Subtract 6.25 from 25

25 - 6.25 = 18.75

18.75

you take the percentage to a decimal 0.25 and x it by 25. which is 6.25. you then subtract the 6.26 from 25 and there's your answer

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.

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