Sam salmon is interested in purchasing stock. he wants to determine the costs.

The answers for the empty boxes are, in order:

$97.50, $1722.50; $67.86, $1198.80; $21.96, $387.96; $91.62, $1618.60; $79.32, $1401.30

Step-by-step explanation:

To fill in the first column, the amount of commission, we multiply the total for each stock by the commission rate, 6%.  6% = 6/100 = 0.06; this means we multiply each by 0.06:

0.06(1625) = 97.50

0.06(1131) = 67.86

0.06(366) = 21.96

0.06(1527) = 91.62

0.06(1322) = 79.32

Next we add each amount of commission to the total for the stock:

1625+97.50 = 1722.50

1131+67.86 = 1198.80

366+21.96 = 387.96

1527+91.62 = 1618.60

1322+79.32 = 1401.30

23

Step-by-step explanation:

If we take a look at the triangles they have two sides and an angle that are congruent, which means they could be proven congruent by SAS. So if they are equal that means that these two sides must be equal. If we make an equation it would look like this...

So now all we have to do is solve by adding 4 to both sides...