Adam wants to buy a video game system that costs $100.00. he has $28.35 in one piggy bank and $31.90 in another piggy bank. how much more money does adam need before he can buy the video game system?

how can estimation be used to make sure the answer is reasonable?

a.
adam needs $160.25 more.
estimation: $28 + $32 = $60.
$100 + $60 = $160.
adam needs about $160 more to buy his video game system.

b.
adam needs $39.75 more.
estimation: $28 + $32 = $60.
$100 – $60 = $40.
adam needs about $40 more to buy his video game system.

c.
adam needs $30.13 more.
estimation: $28 + $32 = $60.
$60 ÷ 2 = $30.
adam needs about $30 more to buy his video game system.

1/4 and 8/3 because:

the reciprocal if 4 is 1/4 because 4 is used as 4/1 and the opposite of that is 1/4. the opposite of 3/8 is 8/3 so that is the answer.

all group life insurance is term insurance. actually it is annual renewable term and it is rated on the average age and claims experience of the entire group, which is called "experience rating." remember, this type of insurance has a 31-day grace period and is convertible to whole life upon leaving employment. a contributory group plan requires that both the employer and the employees pay part of the premium. at least 75% of those eligible must participate, so the group is sure to get most of the healthy employees as well as those that are sick.

step-by-step explanation: