Luke can purchase a 10-pound item from several different stores. Which of the following is the best buy? A- Buy online for $15 plus pay shipping cost of $1per pound
B - Buy online for $17 plus pay shipping cost of $0.50per pound
C - Buy at a local store where the item’s price is$25 and use a $3 - off coupon.
D - Buy at a local store where the item is regularprice at $22 and it is on sale for 10% off

step-by-step explanation:

divide, then simplify your answer.

1. make -15.66 ÷   5.8 a fraction. then divide.

2. simplify.  

3. final answer.  

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