Help 1+2+3+4+5...98+99+100

Which transformations could have occurred to map △abc to △a"b"c"? a rotation and a reflection a translation and a dilation a reflection and a dilation a dilation and a rotation

Me. drysdale earned 906.25 in interest in one year on money that he had deposited in his local bank if the bank paid an interest rate of 6.25% how much money did mr. drysdale deposit

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?