Hi can u help me plz

Which set of reflections would carry trapezoid abcd onto itself? a) x-axis, y=x, y-axis, x-axis b) x-axis, y-axis, x-axis c) y=x, x-axis, x-axis d) y-axis, x-axis, y-axis, x-axis

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.