<PRE><B>Question 1167622</B>
the formula for selling x pretzels in a day is:


y = 20 + .75 * x


if the number of pretzels sold is 150, then the formula becomes:


y = 20 + .75 * 150


solve for y to get:


y = 20 + 112.5 = 132.5


if the daily cost is 275, then the number of pretzels sold is calculated below.


start with 275 = 20 + .75 * x
subtract 275 from both sides of the equation to get:
255 = .75 * x
divide both sides by .75 to get:
340 = x


340 pretzels are sold if the total cost for the day is 275.


y = 20 + .75 * 340 = 275, confirming the solution is correct.


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