C because you need to multiply the adults by 3 to know how many children there are and then you need to exclude the driver which is a-1 meaning taking out 1 adult.
Answer:
y = -3
Step-by-step explanation:
move 2y to the left by subtracting it with 4y
next subtract 6 from both sides
then divide each term by 2
Answer:
x=0,64
Step-by-step explanation: