The cost of the previous year’s booths and prizes for class fun day was $504. this year’s cost of the prizes and booths increased by 8% from the cost of the previous year. one of your classmates believes that the expression can be rewritten from $504+ 8/100x$504 to 1.8($504) to calculate this year’s cost. explain your classmate’s error then determine the correct expression, and find the cost of prizes and booths for this year

The expression to solve the question will be 1.08($504) and the cost is $544.32.

Based on the information given in the question, the previous year’s booths and prizes for Class Fun Day were $504 and it was increased by 8% from the cost of the previous year.

Therefore, the equation to solve this year's cost will be:

= (1 + 8%) × $504

= 1.08 × $504

= $544.32

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The correct expression will be 1.08($504).

Step-by-step explanation:

The cost of the previous year’s booths and prizes for Class Fun Day was $504.

Now, this year’s cost of the prizes and booths increased by 8% of the cost of the previous year.

Therefore, this year's cost of prizes and booths will be given by  

dollars

So, if one of my classmates believes that the expression can be rewritten from $504+ 8/100x$504 to 1.8($504) to calculate this year’s cost then he made a mistake to multiply $504 with 1.8 in place of 1.08. (Answer)

7 weeks

step-by-step explanation:

convert each fraction to the least common multiple of 20, so 3/4 = 15/20 & 1/10 = 2/20, then divide 15 by 2 and you get a little over 7, so the food will last 7 weeks.