If a varies directly with b, write the constant of proportionality equation. b = 2 and a = 10
options:
1. a=5b
2. k=5
3. a= 1/5b
4. b=5a

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?

Yo y do yall have 2 stars that means yall wrong bro

Consider 6x2 + 6x + 1. which term immediately tells you that this expression is not a perfect square trinomial? justify your answer