Answer:
7[2r-3].
Step-by-step explanation:
7[2r-3]
= 7*2r + 7 * -3
=7[2r-3]
It would be 1,200 because you just have to multiply 400 times 3 hope it helped :)
Identity property of zero states that the sum of 0 and any number is that number.
A) h=hours
b) 40 (h)+30= amount earned
hope that is right
