Sam wants to buy 8 pencils and 6 pens, wich cost a total of $8.50. he realizes he doesn’t have enough cash and instead takes only 4 of each, which cost only $5. what is the price of each pen and pencil

n = 0.75

p = 0.5

Step-by-step explanation:

let p = number of pencils

let n = number of pens

8p + 6n = 8.50      (1)

4p + 4n = 5           (2)

(2) x 2    8p + 8n = 10 (3)

8p + 6n = 8.50     (1)

8p + 8n = 10         (3)

(3) - (1)     2n = 1.50

                 n = 0.75

substitute n back in to find p

4p + 4 x 0.75 = 5

4p + 3 = 5

4p = 2

p = 0.5

step-by-step explanation: 4 cause 2+2=4

( - 4 , -7 )

all the lines must parallel  

step-by-step explanation:

coordinates of c = ( - 1 , 2 )

3 units left = ( -4 , 2 )

9 units down = ( - 4 , 11 )