Answer:
1) a. 15ft
b. 6ft
c. 30ft
2) a. 16m
b. 12m
c. 192m
I think it's -6x-18, this queston uses distributive property, so you must multiply each term inside the parenthesis to the number outside the parenthesis.
Ones : 9
Tens : 0
Hundreds : 9
Thousands : 6
Ten Thousands : 0
Hundred Thousands : 2
is ur answer
hope this helps