Which of these best describes the profit Emily makes from selling these cards? A. $3.00 per 4 boxes
B. $10.00 per box
C. $4.00 per 30 boxes
D. $7.50 per box

C

Step-by-step explanation:

we are doing the same thing it is c

the answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b