Arnie is an american teaching english in japan, and he currently has 55,000 yen in his bank account. if the exchange rate changes from 1 u. s. dollar = 90.77 japanese yen to 1 u. s. dollar = 91.24 japanese yen, what happens to the value in u. s. dollars of the money in arnie's bank account?

you'll just earn points here

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

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13 - r - 1 + r

= 12 - r

c

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= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -