Li gives 3 clues for a mystery polygon . it has 4 sides it has no pairs of parallel sides . its angles measure 90 degrees 63 degrees 120 degrees and 87 degrees .which best describes lis mystery polygon?

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?