Answer:
around 21-8 so the equation would look like this (21-8)-6=7
Step-by-step explanation:
you do this because if u put the parentheses around 8-6 you would get 21- (8-6)= 19 because 21 - 2 = 19 so you have to put them around 21-8 to get the right answer
a car travels along a straight road to the east for 150 meters in 4 seconds and west for 50 meters in one second
A = 11 and b = 8 I’m pretty sure brosky
