Which of the following expressions could be used to represent "three less than half a number"?

a. 3 - 1/2n
b. 1/2n - 3
c. 3n - 1/2
d. 1/2 - 3n

B. 1/2n - 3

Step-by-step explanation:

One way to get half a number is to multiply it by 1/2.

The phrase "a number less than an other number" often indicates subtraction.

idk sry

step-by-step explanation:

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