Because they are surveying 200 students, you'll want to divide that 200 by 4. You divide by 4 because then that gives you the amount of 1/4 of 200, which is 50. From there, the problem says that 3/4 people prefer assemblies on Friday. Now that you know 1/4 of 200 is 50, you simply multiply 50 by 3. This created the answer, 150 students.
$59.77. Turn the percent into a decimal by moving the decimal to the left two places (7.5 to 0.075). Then multiply the new decimal by the cost (55.60×0.075=4.17). 4.17 would be the total sales tax, so then add it to the price (55.77+4.17=59.77). Hope that helped.
