A truck can be rented from Company A for ​$80 a day plus ​$0.40 per mile. Company B charges ​$20 a day plus ​$0.70 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.

800 miles

Step-by-step explanation:

Let the amount of miles = m

Company A charges a flat rate of $160 a day, and $0.60 per mile:

total = 0.60m + 160

Company B charges a flat rate of $80 a day, and $0.70 per mil:

total = 0.70m + 80

Step-by-step explanation: Rank me brain list or thanks it :) Hope it helps!

b.an increase in a causes b to decrease

table 3 represents a direct variation function. : )