Use dimensional analysis to determine the number of kilograms in 28 pounds. (hint: 1 kg = 2.2 lbs)

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.

How many grams the dog will eat in 3 days?

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2