Help pls 6th grade math

All of them are correct except for the last one which is incorrect

Step-by-step explanation:

All you need to substitute the answers given for "r" and see if its less than or equal to 2

- 3.5 2 Correct (negative numbers are always smaller than a positive number)

- 2 2 Correct (negative numbers are always smaller than a positive number)

-1 2 Correct ( negative numbers are always smaller than a positive number)

0  2 Correct ( 0 has a value much more less than the value of 2)

2 2 Correct (they both have the same value as "2")

4  2 Incorrect ( 4 has a much more greater value than 2, therefore this is incorrect)

answer: 1722

step-by-step explanation:

given: the mass of saturn=

the mass of mercury=

the number of times the mass of saturn is greater than the mass of mercury

hence, the mass of saturn is 1722 times greater than the mass of mercury.

1^3 + 2^3 + 3^3 +4^3 = (1+2+3+4)^2

step-by-step explanation:

i am only able to answer the first part. i am not sure about the second part. sorry