The price per cubic yard of cement was $90. The price per cubic yard decreased by $15 during the winter, and then increased by $24 in the spring. What is the resulting price per cubic yard of cement, in dollars?
First, we need to determine the decrease in price per cubic yard of cement during the winter.
$15.
Next, we find the resulting price of cement after the decrease during the winter.
$90 - $15 = $<<90-15=75>>75
Then we determine the increase in price per cubic yard during the spring.
$24.
Finally, we find the resulting price per cubic yard of cement after the spring price increase.
$75 + $24 = $<<75+24=99>>99. Answer: \boxed{99}.