Answer:
yes, he can but the backpack.
Step-by-step explanation:
Answer:
......
Step-by-step explanation:
55
Answer:
y=6
Step-by-step explanation:
y=3-x
x=-3
y=3-(-3)
y= 3+3
y=6
Answer:
Given that:
and 
if a , a+ commutator, it obeys 
First find:

= 
Now;

=
therefore,
which implies the operators a and a+ are commutators.
Answer:
5.209 or A
Step-by-step explanation
5^x-4=7
reserve 4
log sides
x-4 log5 and log7
x-4=log7/log5
+4 or number of your equation
x=log5/log7 +4
use calculator
get answer
5.209
EDIT: Got a 100 on the test this is correct