which expression represents the area of the Shaded triangle 1/2 × (6.2) x (1.9) 1/2×(5.7)×(1.9) 1/2×(6.3)×(4.3) 1/2×(5.7)×(4.3)​

Emma will roll two number cubes labeled 1 through 6. she will record the sum of the two numbers after each roll. she will roll the two cubes 540 times. how many times should emma expect the sum to equal 5?

Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia

Richard save $32 in march he saved $48 in april and $38 in may then richard spent $113 on a keyboard how much money does richard have left