Deirdre is factoring the polynomial x2+2x-24

(x+6)(x-4)

Step-by-step explanation:

You need to look at the middle and the end number.

You have to thing what can be subtracted to equal 2 and what can be multiplied to equal -24?

That is 6 and -4. Added together equal 2 and multiplied together equals -24. So your answer is.

(x+6)(x-4).

15: 24

62.5%

step-by-step explanation:

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