Answer:
r = 1
Step-by-step explanation:
Use the distributive property to multiply −6 by −3+5r.
18−30r=−5−7r
Add 7r to both sides.
18−30r+7r=−5
Add −30r and 7r to get −23r.
18−23r=−5
Subtract 18 from both sides.
−23r=−5−18
Subtract 18 from −5 to get −23.
−23r=−23
Divide both sides by −23.
r=−23/−23
Divide −23 by −23 to get 1.
r=1
Answer:
The values for the given function f is defined by
is
a)
,
b)
and
c) 
Step-by-step explanation:
Given that the function f is defined by
Now to find the value of f(0), f(18) and f(-18)
Now take f(0)
Put x=0 in the given function
we get

Therefore 
Put x=18 in the given function
we get

Therefore 
Put x=-18 in the given function
we get

Therefore 
The values for the given function f is
a)
,
b)
and
c) 
The independent variable would be how long he works out and the dependent variable would be how many calories he burns
The answer would be 64____ 4*4*4=64