Rodney buys 3 packs of Oreo's and 2 gallons of ice cream for $19.78. Gia buys 4 packs of Oreo's and 1 gallon of ice cream for $18.74. Which system of equations
would you use to find the cost of one package of Oreo's and one gallon of ice
cream?

answer: asdfghjkl,mnbv

step-by-step explanation:

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

answer is (b.

164 ft2)

a base  

18

b base  

7

h height  

8