A student's cost for last semester at her community college was $2700. She spent $486 of that on books. What percent of last semester's college costs was spent on books?

The depreciation per unit for a company

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

What is the y-intercept of the line given by the equation