Answer:
It would be B. because the decimal places go into the hundredths.
45 handshakes would take place! i've attached how i figured this out (pardon the scribbles)
<span>−8x+7y=25 is already in standard form, altho some people would prefer to re-write it as
</span><span>−8x+7y-25 = 0.
You have shared 4 equations here. Next time, please separate them with commas or semi colons, or type just 1 equation per line, for increased clarity. Thanks.</span>
Z+5 that's it sorry had to put at least 20 characters so good luck. To clarify, it is z+5