For this, you have to calculate the Unit value,
Unit value of 1rst one, 4.99/6 = 0.83
Unit value of 2nd one, 7.99/10 = 0.79
As, 2nd one is cheaper, so it is better :))
Answer: D, .1
Step-by-step explanation: 10 marbles and 1 green
50 times she pulled and almost every ten tries she got green meaning there's a high chance of her getting 1 green every 10 tries
15+(q/6)=-21
Subtract 15 from both sides
q/6= -36
Multiply both sides by 6.
q= -216