A balloon can rise to a height of 30 ft when the wind is blowing at 5 miles per hour and to a height of when it is blowing at 10 miles per hour. Identify the independent and dependent variables.

a is 8.b is 10.c is 10.5. d is -.5

step-by-step explanation:

just minus the smallest number from the biggest.

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 -

kaahe btau

the first domain and range set to the left is matched with the top relation, and the second set the set in the middle goes with the bottom relation.