Probability=number of specific outcomes / total number of possible outcomes...
P(r)=7/(9+7+6)
P(r)=7/22 ( ≈31.82%)
For Q3, you can subsitute x = 2 and y = 5 into the systems
-5(2) + 5 = -5
so it's a solution for the first system
-4(2)+2(5) = 2
it's also a solution for the second system
Answer:
.................. ........
Dan sold 51 tickets. Just subtract 43 from 94
