What is 259494847 in scientific notation

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

That table shows measurements (in invhes$ from cubes with different side lengths. which pairs of variables have a linear relationship? check all that apply

Janet is rolling a number cube with the numbers one through six she record the numbers after each row if she rolls of keep 48 times how many times should she expect to roll a 4