PLEASE HELP ASAP
What is the sum of the first 7 terms of the series: -8 + 16 - 36 + 64 -...?

Sioux co. replaced the roof on its existing building, therefore increasing the building's life by 10 years. the cost of the roof is considered a(n):

The manager at gabriela's furniture store is trying to figure out how much to charge for a book shelf that just arrived. the book shelf was bought at a wholesale price of $ 1 4 7 . 0 0 $147.00, and gabriela's furniture store marks up all furniture by 6 0 % 60%. at what price should the manager sell the book shelf?

Consider the quadratic equation ax^2 +bx+5=0 , where a, b, and c are rational numbers and the quadratic has two distinct zeros. if one zero is irrational , the other zero is