What is the variable in 7x - 9?

2 (x+5) + 2 = 3 (2x - 4) pleas show all work

Given f (x) = 4x^4 + 5x^3 - 15x^2 - 45, find f (-3)

If 9 is subtracted from a certain number and the difference is divided by 3 , the result is 1 more than 1/7 of the original number. Find the original number.

6. Given the following equation, write a real-life problem about a gym that could be modeled by this equation. Remember to identify your variables.

What Is the answer to this: Convert these 24 hour clock times into 12 hour clock times 20:20 08:05 00:10 17:45

Write (7x^8) (-3xy^2) as a positive exponent

Lindsey sold necklaces to earn money. She earned $125 and put it in a savings account. She earns 5% interest from the bank. If she leaves it in the bank for 2 years, how much will she have in her account at the end of that time?

Evaluate the expression shown for x = 12. Negative StartFraction 5 over 6 EndFraction x + 7

If a wave has a wavelength of 9 meters and a period of 0.006, what is the velocity of the wave?

What is a common factor of 72 and 108