Answer:
34.074
Step-by-step explanation:
Answer:
At 6 p.m., the number of cars in a parking lot is 120
Step-by-step explanation:
At 1 p.m., the number of cars in a parking lot is 78.
Given,

Note that

So, 1 p.m. goes for n = 0, then
6 p.m. goes for n = 5
Thus,

Answer:
y=10
Step-by-step explanation:
y/5+7=9
y/5=9-7
y/5=2
y=2*5
y=10
No solution
Because 3 unknown needs 3 equation at least