The West Hancock Booster Club is considering replacing the existing grass sports eld with a new, softer type of grass. Local fans have agreed to volunteer their labor and equipment. The Booster Club is concerned only with the total cost of the sod for the eld. They found that a 6' × 2' roll costs $11.99, and an 8' x 3' roll costs $29.99. The field dimensions are 120 yards by 54 yards.

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what are the statements

step-by-step explanation:

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 -