A solid consists of a square based prism of height 6.5 cm exactly fitting of a right pyramid of slant height 5 cm
on the top. If the volume of the lower part is 416 cm cube,
find (i) the height of the pyramid. (ii) the volume of the
pyramid.

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x

Why is causation so much more difficult to prove than correlation?

At the beginning of the year, adrian's savings account balance was \$28$28. each week, he deposits another \$15$15 into that account, and he doesn't spend any of his savings. is his savings account balance proportional to the number of weeks since the start of the year?