Which products result in a sum or difference of cubes? check all that apply.

a=(x – 4)(x2 + 4x – 16)
b=(x – 1)(x2 – x + 1)
c=(x – 1)(x2 + x + 1)
d=(x + 1)( + x – 1)
e=(x + 4)(x2 – 4x + 16)
f=(x + 4)(x2 + 4x + 16)

sum of cubes:
(a + b)(a2 – ab + b2) = a3 + b3
difference of cubes:
(a – b)(a2 + ab + b2) = a3 – b3

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Asap for seven months an ice creams vendor collects data showing the number of cones sold a day (c) and the degrees above 70 degrees f the vendor finds that there is a positive linear association between c and t that is the best modeled by this equation c=3.7t+98 which statement is true? the model predicts that the average number of cones sold in a day is 3.7 the model predicts that the average number of cones sold i a day is 98 a model predicts that for each additional degree that the high temperature is above 70 degres f the total of number of cones sold increases by 3.7 the model predicts for each additional degree that the high temperature is above 70 degrees f the total number of cones sold increasingly by 98

Phyllis and chen are saving money to go to a football game. each friend starts with some money and saves a specific amount each week. phyllis made a graph to show the total she has saved at the end of each week. chen wrote an equation to show the total, y, he has saved at the end of each week, x. y = 15x + 15 compare the amount that each friend has when both friends start saving. select the correct answer from the drop-down menu to complete the statement. phyllis starts with $ and chen starts with $