Express the decimal 2.39 as a percent. a. 239% b. 240% c. 23.9% d. 239%

Prove that the sum of two consecutive exponents of the number 5 is divisible by 30.if two consecutive exponents are 5n and 5n + 1, then their sum can be written as 30.

Which of the following is true for the relation f(x)=2x^2+1

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /