What multiples itself 3 times to get to 216

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

The spring the owner of a sporting good store decreases the price of winter gloves from $10 to $8 each increases the price of swimming goggles from $8 to $10 without doing the math you think the percent decrease in the price of the gloves the same as the percent increase of the goggles explain why or why not

If chord ab is congruent to chord cd, then what must be true about ef and eg?