Pls help pls
10 POINTS pls

Write the expression as a single natural logarithm. 2 in a - 4 in y

Can some one explain this i got sent this. is this a threat i’m scared

Atruck can be rented from company a $50 a day plus $0.60 per mile. company b charges $20 a day plus $0.80 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and company b are the same