Select the correct product. (x 2 + 4x + 8)(2x - 1) a) 2x3 + 7x2 + 12x - 8 b) 2x3 - 7x2 - 12x - 8 c) x2 + 6x + 7 d) x2 + 8x - 8

What kinds of numbers make up the set of numbers called the real numbers? give examples when you explain a number type. there are a limited set of types of numbers, but an unlimited number of examples of these numbers.

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

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?