Punctual, like prompt, means arriving or doing something exactly at the appointed time.

To find the product of more than two numbers, work on only two numbers at a time. If both of these numbers have plus signs (+), their product has a plas sign, tf both have minus signs (-), their product has a plus (not a minus) sign. Bui if their signs are different, the product has a minus sign.
(+2) (-5) (+3) (-3)
=(-10) (+3) (-3)
= (-30) (-3)
= +90

First, add up the wages made by the four customer service reps.
$320x4 = 51-280
Now calculate how much the two assistant managers make each week. 2 assistant managers * [($12 per hour x 40 hr) + (5 days per week x $100)] = 2 assistant managers x ($480 + $500) = 2 assistant managers x $980 = $1,960 per week Now add the pay for the four customer service representatives to the pay for the two assistant managers.
S1.280 - S1,960 = S3.240 total