At a travel agency, Karina was quoted a price of $645 for a round-trip ticket to Paris, France. She found the same
ticket online for $489. Find the percent of change to the 15. nearest tenth.

angle addition postulate

2x=56

step-by-step explanation:

c. side angle side. u shares the same sides

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 -