HELP ASAP PLEASE Kristen Lynn sells college textbooks on commission. She gets 4% on the first
$5000 of sales, 8% on the next $5000 of sales, and 12% on sales over
$10,000. In July of 1997 Kristen's sales total was $13,500.

Step-by-step explanation:

5000 at 4% =200      (5000*0.04)

5000 at 8% = 400      (5000*0.08)

3,500 at 12% = 420     (3500*0.12)

200+400+420 = 1020

Her commission is 1,020 dollars :)

1) c 2143.6 cm

2) c 113.0 m

3) a 33.5 ft

4)   d 2 cm

5) c 20 mm

6) 180 in

7) d 120 ft