Whats the answer?

35% of 54 is calculated by: 0.35 * 54 = 18.9.

Check: What % is 18.9 / 54 ? { 18.9/54 } *100= 0.35 * 100 = 35%

Note:

When using % the percent number, in this case 35%, you use that number divided by 100 to get the fraction needed to perform calculations.

Also The numbers we have, 35% and 54, each have only 2 significant digits so the answer is only good to 2 significant digits. The 18.9 we calculated should strictly be rounded to 2 signivfcant digits, 19. This is done when the numbers are measurement in say a scientific experiment. Check with your instructor regarding his/her preferred treatment of significant digits.

Good Luck! *BruceS*