Select the correct answer from each drop-down menu. a triangular piece of rubber is stretched equally from all sides, without distorting its shape, such that each side of the enlarged triangle is twice the length of the original side. the area of the triangle to times the original area.

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?

Can someone answer this question for me

Which of the following represents the factorization of the trinomial below? x^2+7x-30