I think the equation should be

where 3 is the common ratio of the exponential function
so the answer is C.
Answer: 60 miles per hour
Explanation: r = d/t = 420 miles/7 hours = 60 miles per hour.
Hope this helps :)
F(1) = 2
f(2) = -5f(2-1) = -5f(1) = -5(2) = -10
f(3) = -5f(3-1) = -5f(2) = -5(-10) = 50
So, f(4) = ?
Answer:
The answer will 150 degrees cause the triangle is an equilateral triangle
A=A
Answer:
Based of the question we can't come to a definite answer as we need the diagram to see the values.