PLZ HELP ILL MARK BRAINLIEST!!

What is the ratio for the surface areas of rectangle prisims shown below given that they are similar and that the ratio of their edge lengths is 7: 3

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Astore ordered 750 candles a total wholesale cost of $7910.20. the soy candles cosy $12.17 each and thespecialty candles cost $9.58each. how many of each were bought?