In the number 99, how many times larger is the value of the digit in the tens place than the value of the digit in the ones place?

Can you draw an isosceles triangle with only one 80 degree angle?

Prism m and pyramid n have the same base area and the same height. cylinder p and prism q have the same height and the same base perimeter. cone z has the same base area as cylinder y, but its height is three times the height of cylinder y. the figures and have the same volume.

If x+y+z=0 what is the value of [tex] {x}^{3} + {y}^{3} + {z}^{3} [/tex]