Im not sure if I’m entirely right and I don’t know number 4!

y-y1=4(x-x1)

step-by-step explanation:

this is point-slope form since you only have 4 as the slope it goes in place of m

hope this : )

i dont understand the question? ?

step-by-step explanation:

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

6x = 48

i hope this . 6 cards each and a total of $48. dvide each side by 6 and you will have your answer.