Linda had a garage sale. she set up three tables at the garage sale and all items on the same table cost the same amount. on table a, items cost $1.25 each. on table b, items cost $1.35 each. on table c, items cost $1.50 each.
tommy, denise, brayden, arielle, erik, and salena all have the same amount to spend at the garage sale and each person bought items off of just one table. the purchases made are shown below.
name number of items change
arielle 10 $6.50
brayden 11 $3.50
denise 9 $7.85
erik 6 $12.50
salena 11 $5.15
tommy 5 $12.50
who bought items from the same table?
salena and arielle
denise and erik
erik and tommy
brayden and tommy
brayden and denise
salena and brayden
need answer fast

Step-by-step explanation:

We will calculate the amount spent of each of six persons assuming they spent money at each of three tables (A,B,C) to arrive at a table shown in the attached image.

For example, Arielle bought 10 items at table A with a change of $6.50, so amount she had to spent if she bought at table A was 10*1.25+6.50=$19.00 (see table, top left corner).

We repeat the same exercise for all of the amount spent of each person at each table to complete the table in the given image.

There is only one amount that is common to all of them, namely $20.

Scanning down the columns, we see that only

Erik spent at table A,

Arielle, Denise and Salena spent at table B,

Brayden and Tommy spent at table C.

So out of the choices, those who spent at the same table are:

Salena and Arielle (table B)

Brayden and Tommy (table C)

a negative exponent is translated as follows:

so, we have

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

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