Using the benchmarks of 0, One-half, and 1, is 12.5 a reasonable estimate for the sum of 9.3 + Two and four-fifths? don't say anything stupid pls (i will report u)

answer choices
No, 12.5 is not a reasonable estimate, because 9.3 rounds to 9 and Two and four-fifths rounds to Two and one-half. The estimate should be 11.5.

No, 12.5 is not a reasonable estimate, because 9.3 rounds to 9 and Two and four-fifths rounds to 3. The estimate should be 13.

Yes, 12.5 is a reasonable estimate, because 9.3 rounds to 9.5 and Two and four-fifths rounds to 3. The estimate should be 12.5.

l.ln.lln.k.nkl

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

(8+64)^2= 5184 < answer

step-by-step explanation:

2^3 = 8

4^3= 64

(8+64)^2 = 5184