Ok so the answer is

so we multiply numbers that have the same variable

multiply 2 x 2

then multiply the exponents

multipling like this will look like addition.

so in other words you could do it like this too

now add the exponent with 4

now for the last part

because -3 and 3 added together make 0

I hope this help(it looks complicated but it's very easy and I hope I helped you out)
Answer:
-35.148
I don't know if you need to round the answer or not
Step-by-step explanation:
Answer:
in the number 84,672 ,the place value of figure 8 is "1000"
Answer:
$500 interest
Step-by-step explanation: