Presley and Allie live in different states where the sales tax on items is different. Presley buys a pair of shoes that cost $37.99 plus 5.5% tax. Allie buys a pair of shoes that cost $39.99 plus 8% tax. She uses a coupon for 15% off her purchase.

only 10/60 isn't equivalent

hope this : )

9x

see explanation

step-by-step explanation:

a

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

= 6r + 7 + 13 + 7r

= 13r + 20

b

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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 -