You need to multiply the amount by the tax
£4 and 720p, 12 times 60p equals 720p
Cole's mistake was that he rounded 555 to the nearest hundred instead of the nearest ten. He should've rounded it to 560 because the tens place is the second number, not the first one.
9. x < −17
10. x < 6
11. 10 < x < 21
12. Move all terms not containing x from the center section of the inequality. No solution.
13. −3 < x < 3
Please give brainliest I worked hard.