221. Which gas is most abundant in Earth’s atmosphere?
✅ B. Nitrogen
Nitrogen makes up about 78% of Earth's atmosphere. Read more
Author: Sheeraz Ahmed – Page 12
222. Solve for x: 5x + 0 = 55.
✅ B. 11
Subtract 0 from both sides and divide by 5; x = 11. Read more
223. Solve for x: 4x + 3 = 43.
✅ A. 10
Subtract 3 from both sides and divide by 4; x = 10. Read more
224. Solve for x: 3x + 2 = 29.
✅ C. 9
Subtract 2 from both sides and divide by 3; x = 9. Read more
225. Solve for x: 2x + 1 = 17.
✅ A. 8
Subtract 1 from both sides and divide by 2; x = 8. Read more
226. Solve for x: 6x + 0 = 42.
✅ A. 7
Subtract 0 from both sides and divide by 6; x = 7. Read more
227. Solve for x: 4x + 2 = 22.
✅ A. 5
Subtract 2 from both sides and divide by 4; x = 5. Read more
228. Solve for x: 5x + 3 = 33.
✅ D. 6
Subtract 3 from both sides and divide by 5; x = 6. Read more
229. Solve for x: 3x + 1 = 13.
✅ C. 4
Subtract 1 from both sides and divide by 3; x = 4. Read more
230. What is 51 + 6?
✅ D. 57
51 + 6 = 57. Read more