Suppose that when players of a basketball team are introduced at the beginning of a game, the public address announcer randomly choose the order he reads off the names

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -

$119.20

step-by-step explanation:

$372.50 - 60% off is $149. $149-20% off is $119.20

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