Are the expressions: 3n - 1n + 7 and 2n + 10 - 3, for n=5

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation

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

Which of the following expressions cannot be simplified to x – 2?