Answer:
D. 55
Step-by-step explanation:

The answer is 5.5 I’m pretty sure
Answer:
21 * 2 = 42
21 + 2 = 23
Step-by-step explanation:
well I know that 6 * 7 = 42 so I’m assuming that’s correct
Then 11 + 12 = 23 it could be the answer I’m not positive for this one though.
The first one should be correct.
Maybe try
21 * 2 = 42
21 + 2 = 23
2(2/5) divided 2(-1/5)
we do PEMDAS meaning parenthesis first
2(2/5) = 4/5(calculator)
or
2/1x2/5=4/5
now
2/1x-1/5=-2/5
now we do division
4/5/-2/5 we get -2
-2
Answer:
192x^4 - 192 x^3i
Step-by-step explanation:
a^3 b
Lets find a^3
a=4x
a^3
(4x)^3
64x^3
b = 3x-3i
a^3b
(64x^3) * (3x-3i)
Distribute
64x^3*3x - 64x^3 *3i
192x^4 - 192 x^3i