The answer
for such a question, it is required to graph each function, the answer is
<span>f(x) =4/5(4/5 )^x
check the attached file for proof</span>
X - 3 = 7 (only solution is 10)
2x + 5 = 11 (only solution is 3)
7x - 1 = 27 (only solution is 4)
4x + 2 = -6 (only solution is -2)
Answer:
40
Step-by-step explanation:
One minute later at 8:01pm. One lighthouse will flash 3 times (at 20, 40 and 60 seconds)...the other will flash twice (at 30 and 60 seconds). So they will both flash 60 seconds later, at 8:01