How many nitrogen atoms are in one molecule of the compound Al (NH 3) 2?

six

three

two

one

A rectangular field is 90 yards wide and 140 yards long. give the length and width of another rectangular field that has the same perimeter but a larger area

A bag contains eleven equally sized marbles, which are numbered. What is the probability that a marble chosen at random is shaded or is labeled with a multiple of 3? Mark this and return Save and Exit Next Submit

No. of diners = 240 Portions of juice served = 4 oz. per diner Size of juice can = 48 oz. How many cases of juice required if there are 8 cans in a case and you must buy a whole case?

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Sophie bikes at a speed of s miles per hour. Her friend Rana is slower, her biking speed is only r miles per hour. Today the girls went for a 20 miles trip, each girl was biking at her usual speed.

round 1,129.872 to 2 decimal places

What equals to 5 (8-x)

Carol has 8 hours to spend on a mountain hike. she can walk up the trail at an average of 2 mph and can walk down at an average of 3 mph. how long should she plan to hike uphill before turning around

Factorise fully 8x+6

Problem construct a triangle with interior angle measures of 60° and 60° let one of the side lengths beaten what are the length of the other side