Solve this math problem
what is −23×(−56)=

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?

Two lines parallel to a third line are parallel to each other. always sometimes or never

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827