Carlton is running at a constant speed of 12 per hour. how far does he run in 40 minutes?

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.

Evaluate 3(a + b + c)squared for a = 2, b = 3, and c = 4. a. 54 b. 243 c.729 add solution .

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.