Step-by-step explanation: the tangent is 8/6 because it is the opposite (8) over the adjacent (6)
Answer:
Step-by-step explanation:
Given that:
x + 4y = 30
x - 2y = 0
Subtracting both equations:
6y = 30
y = 30/6
y = 5
Putting in above equation
x + 4(5) = 30
x + 20 = 30
x = 10
i hope it will help you
Answer:

Step-by-step explanation:
General equation of geometric sequence: 
Given:



Common ratio:

Therefore:

He can make a 70 or higher to keep a B avg.