Arlene buys a phone case and charging cord for 15% off. The original cost of the phone case is $18. Her total discount is $4.20. Write and solve an equation to find the original price of the charging cord, x.

Radii ok and nl are perpendicular to om because of the radius-tangent theorem. by definition of perpendicular, angles kom and lnm are right angles. this means that triangles kom and lnm are right triangles. angle lmn is common to both right triangles, so by the triangles kom and lnm are similar.

Ac contractor is building a new subdivision outside of the city. he has started work on the first street and is planning on the other streets to run in a direction parallel to the first. the second street will pass through (-2,4) find the equation of the location of the second street in standard form. a.2x+y=2 b. x-y=2 c.2x+y=2 d.x+y=2

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10