Answer:
Step-by-step explanation:
$140.80. The last part was a little tricky at first and then i relised that it was $7 an hour
For a string length of 1 there are 2 possible strings (2^1)
for a string length of 2 there are 4 possible strings (2^2)
for a string length of 3 there are 8 possible strings (2^3)
So, for string length of 7 there are 128 possible strings (2^7)
One is going up and then going down and then going up and all the way up. You’re welcome