Rewrite each explicit formula in the form of a function. Part A
an= 19 - 7(n-1)
f(n) =
Part B
an= 1.5 +4.2 (n - 1)
f (n) =

--- (a)

---- (b)

Step-by-step explanation:

Given

Required

Rewrite as a function

Rewrite

Open bracket

Collect Like Terms

Rewrite

Open bracket

Collect Like Terms

if you're trying to figure out how much each ounce cost it would be 0.20

cents each ounce

she will sew have sewn five dresses   and be 1/3 done with the sixth one in an hour.

step-by-step explanation:

3/4 of an hour=45 mins

lucy makes 1 dress per 11.25 minutes

45 mins+11.25 mins=56.25 mins

60 mins- 56.25 mins=3.75 mins

3.75 mins is 1/3 of of 11.25 mins

therefore she the other 1/3 would be part of the hour and she will have sewn 5 dresses and begun the sixth.

contact me if you have any questions you are welcome.