A specialist paint manufacturer receives $12 for each pot sold. The initial set-up cost for the production run is $800 and the cost of making each tin of paint is $3.
(a) Write down a formula for the total profit, π, if the firm manufactures x pots of paint
and sells y pots.
(b) Use your formula to calculate the profit when x = 1000 and y = 800.
(c) State any restrictions on the variables in the mathematical formula in part (a).
(d) Simplify the formula in the case when the firm sells all that it manufactures.

care to share were the trapezoid shown is ?

i have no clue what you just said. write a question in english?

all three statements are true

step-by-step explanation:

a shipping fee of 5% is charged online with every item purchased online

first let's just take each option and calculate them based on this, to see if the answers matched

keith buys a 40 dollar book

40 x 0.05 = 2

therefore there will be a two dollar fee on keith's book

40 + 2 =42

the first statement is true

a chair costs $80

80 x 0.05 = 4

80 + 4 = 84

the second statement is true

george buys a 20 dollar calculator

20 x 0.05 = 1

20 + 1 = 21

the third statements are true

all three statements are true