Hassan predicted that he would sell 178 postcards. He actually sold 142 postcards. What are the values of a and b in the table below?

Percent Error

Item:POSTCARDS

Approximate value:178

Exact value:142

Error:A

Absolute error:B

Ratio

Percent error

answer choices
(A )a = negative 36; b = negative 36
(B)a = negative 36; b = 36
(C)a = 36; b = negative 36
(D)a = 36; b = 36

60

step-by-step explanation:

every triangle measures a total of 120 degrees. you have to find angle c. we know that isosceles triangles angles are equal. 60 degrees plus 60 degrees gives you 120.

2 1/2 feet

step-by-step explanation:

p

step-by-step explanation:

it's a proportional graph.

step-by-step explanation:

8 x 5 = 40         (and you have -8x and -5y)

x= absiss

y= orderly

so you have a proportional graph.