Connie hamm demonstrates microwave ovens. she earn $5.00 per demonstration for the first 10 demonstrations and $6.00 for each demonstration over 10. for every microwave sold, she earns $10.55 .what is connie's commission on a day in which she makes 12 demonstrations and 4 sales?

 On a day in which she makes 12 demonstrations and 4 sales, Connie makes $522.20

Step-by-step explanation:

first 10 demos

10 x 35= 350

demos after first 10

2 x 45= 90

add them together

350+90=440

money made from actual sales

20.55 x 4= 82.2

add sales total and demo total to get your total

440+82.2= 522.20

b. astronomers