Answer:

Step-by-step explanation:
GIVEN: A car was sold
standard washed in a day , which was
of their total sales for that day.
TO FIND: Total amount of washes that the car wash sold that day.
SOLUTION:
Let the total sales of car washes sold for that day 
total number of standard car washes sold 
As, total standard car washes sold are
of total sales in a day

putting value in equation



Hence the total number of car washes sold that day are 
Answer:it’s the first one
Step-by-step explanation:
This is a bit of a guess, but I think probably a) +4 and also a) -215
V = d/t
75 km/h = 480km /t
t = 480km / 75 km
t = 6.4 hours or 384 minutes