If f(x) = x^2 – 3x, what is f(5)?
a. 4
b. 8
c. 10
d. 16

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?

Hello, i need compare km^2 and km. what's difference in this?

Aa at 9 a.m. it at 4 p.m. he a of $28.84.?