twelve students have an equally likely chance of being selected in a drawing at school. eight are girls and four are boys. what is the probability that a boy will be selected?

Simplify the expression. -2/5(10+15m-20n)

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5