Brandon buys a radio for $46.49 in a state where the sales tax is 7%.

I couldb't understand you're question but here are possible answers and explanations

What is the total price: $49.74

$46.49 • 0.07 = 3.25

46.49 + 3.25 = 49.74

What was the sales tax amount: 3.25

$46.49 • 0.07 = 3.25

Hope this helps.

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step-by-step explanation:

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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 -