3y = 4x + 15 and 9x + 12 y = 12 Determine if the angles are perpendicular, parallel, or neither

Acollege is planning to construct a rectangular parking lot on land bordered on one side by a highway. the plan is to use 680 feet of fencing to fence off the other three sides. what dimensions should the lot have if the enclosed area is to be a maximum?

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Measure of angles 31 (x+4) (3x+9) me