Some wolves howl in the woods. 12 wolves join them. Now 30 wolves howl. How many wolves howled at first?

What is the solution set of the quadratic inequality x2- 5< 0? o {xl-55x55{x- 155x55){xl -55x5 15){x1 - 15 sx5/5)

The probability that you roll a two on a six-sided die is 1 6 16 . if you roll the die 60 times, how many twos can you expect to roll

Order the measurements from the least to the greatest. 2,720 ml , 24.91 l , 0.0268 kl