Which of the following expressions is INCORRECT given the value for the variable n? 50 - n = 40, n = 10
24 ÷ n = 6, n = 4
6 + n = 10, n = 1
3n = 9, n = 3

It is 6+n=10, and n=1

Step-by-step explanation:

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice

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