Estimate 6932-3235 by first rounding each number to the nearest hundred

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

If i have one apple and give you the apple, how many apples do i have?

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?