Not sure if this is correct or not but my answer is 48 These were my steps: 2(6+(12divided(3+1)-1 2x6=12. 3+1=4 4-1=3 12divided by 3 =4 So now all we have are 12 from (6x2) and 4 from 12div. By3 Then we multiply 12 with the 4 which =48 Hope that helped and made sense.
It’s A. Since every aspect of that is multiplication, you can change around how you write it such as (6*7)^3. 6*7 is 42, and 42^3 is the exact same as 42^3
The are moving towards each other at 50 mph and 40 mph which is the same as 90 mph. They are moving 90 mph closer to each other every hour so in 2 hours it would be 180 miles.