1. In the first four months of the year
(28)
the Montgomerys' electric bills
were $120.46, $134.59, $118.38,
and $96.29. What was the
Montgomerys' average electricity
bill during the first four months of
the year?

Asilkworm winds its cocoon out of one long silk fiber. to make silk thread, 3 to 10 of these silk fibers are unwound from their cocoons and combined into aa single thread with a typical length of 300 yards. choose a reasonable number of silk fibers in a thread write an equation to find the total length of the silk fibersused in 300 yards of the thread

Myron put $5000 in a 2-year cd playing 3% interest, compounded monthly. after 2 years, he withrew all his money. what was the amount of the withdrawal?

Simplify the expression. -2/5(10+15m-20n)