In ∆WXY, if m∠W is five less than twice m∠Y and m∠X is 21 more than m∠Y, find the m∠W.

Enter the missing numbers in the boxes to complete the table of equivalent ratios of lengths to widths. ? 18 8 ? 10 30 12 ?

He amount of carbon-14 present in animal bones t years after the animal's death is given by p(t)equals=upper p 0 e superscript negative 0.00012097 tp0e−0.00012097t. how old is an ivory tusk that has lost 26% of its carbon-14?

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?