Sam purchased a video game for $31.99 but paid $35.04. Sam paid $
in sales tax.

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

What is the shape of the height and weight distribution