let's recall that there are 16oz in 1 lbs, so then 12lbs is 12*16 = 192oz, plus 5, that makes it 197oz, so then 12lb 5oz is really 197oz.
likewise, 7lb is 7*16 = 112oz, plus 10 that makes it 122oz.
197 - 122 = 75 oz
and 75 oz is just 16+16+16+16+11, 4lbs and 11 oz.
Answer:
I believe its -1644 or 4*-411
Step-by-step explanation:
first we want to solve the equation in brackets (4-8) which equals -4 and then we take the 411 and multiply i by negative 4 hope this helps

which follows from the definition for expected value,

where

is the probability density function for

.
Answer:
there you go but im not sure . hope its helpful and good luck ;)