Hey there
<span>240 times 365 can be written as 240 x 356.
</span><span>240 x 356 = </span>87600
C) 250 is the right answer
for number 19, figure out the exponents then multiply.
for scientific notaintion you figure out how many numbers are behind the decimal , then do that number as an exponient to 10 then multiply by that number. i hope i made a bit of sense. if not look at kahn academy for help !