Cari is searching online for airline tickets. two weeks? ago, the cost to fly from boston to denver was ? $220. now the cost is ? $375. what is the percent? increase? what would be the percent increase if the airline charges an additional? $50 baggage fee with the new ticket? price?

yes

step-by-step explanation:

they have to be opposite and reciprocal of eachother.

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 -

its totaly b

your welcome btw

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