What is the equation of the line that passes through (-1,-4) and (-2,-1)

y+4=-3(x+1)

Step-by-step explanation:

You start by calculating the slope which is y1-y2 over x1-x2, which plugging the numbers in, comes out to be -3. Then, taking the point slope formula

(y-y1=m[x-x1]), you just plug the rest of the variables in.

answer: 180

step-by-step explanation:

12-2=10

20-2=18

18x10=180

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or