The neighbors' dog barked at Tana 80% of the time she walked by their house. Predict the number of times the dog will bark at Tana if she walks past the house 45 times.

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

When you answer this can you explain

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?