justin has x nickels and y dimes. He has a minimum of 15 coins worth at most 1$ combined, write 2 inequalties to solve this sysem of equations

For the equations below which statement is true ? -2x=14 6x=-42

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.

Factor the polynomial by its greatest common monomial factor.