Cheryl and her dog Harkey can walk the 2.5 mile loop in their neighborhood in 20 minutes. a) What is their speed in miles per hour? b) If they walked for 30 minutes, how far would they walk? c) Convert 2.5 miles to kilometers.

0.6

39mph

step-by-step explanation:

idk

step-by-step explanation:

payback

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 -

the answer to your question is c.)   volcanoes built the mountains and earthquakes tore them down.

step-by-step explanation: