Joan works on commission for a furniture store. she gets a base pay of $80 a day plus 4 percent of the value of any merchandise she sells that exceeds a total of $400. joan wrote the expression 400 + 0.04(t − 80), where t represents her sales total in dollars, to compute the total amount of money that she will make. for sales of $575 joan calculated that she will make $419.80. explain joan's error by completing the correct expression and how much she will make. i need the expression and how much she will make, ! ! ! !

She gets a base pay of $80, so you must have a plain 80 in the expression.

80

Then she gets 4% of the value of merchandise she sells above $400. If she sells t dollars of merchandise, the amount that exceeds $400 is t - 400. For example, if she sold $500, then the amount that exceeds $400 is $100, and t - 400 = 500 - 400 = 100, so you see the expression t - 400 does give the amount of sales exceeding $400. She gets 4% of the amount that exceeds $400, so she gets 4%(t - 400) = 0.04(t - 400). Now we add this to the fixed 80 we had from above.

The correct expression is:

80 + 0.04(t - 400)

Joan's error is that she switched the 80 and the 400 in her formula.

Now we calculate her daily salary for sales of $575 in one day.

80 + 0.04(t - 400) =

= 80 + 0.04(575 - 400)

= 80 + 0.04(175)

= 80 + 7

= 87

She will make $87 for that day.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

1. 3.4/4

2. 0.8/7

3. 0.5 x 3

4. 0.9 x 6

5. 10.8

6. 2.35

7. 0.567

8. 9.35

9. 0.02

10. 0.06

11. 0.16

12. 0.42

13. 0.63

14. 5.6

15. 8.1

16. 9.9

17. 0.28

18. 0.48

19. 0.27

20. 0.49

21. 0.45

22. 0.72

23. 0.9

24. 0.88

25. 0.75

26. 0.16

27. 0.328

28. 0.495

29. 0.72

30. 1.068