What is the explicit form for the following sequence: -1,3,-9,27,...

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x

When i'm with my factor 5, my prodect is 20 .when i'm with my addend 6' my sum is 10.what number am i