Pls help

what is the surface area of the solid above

Which math sentence can be used to determine if the triangle is a right triangle?

Trent wants to buy 2 packs of trading cards for 3 dollars each. the trading card packs that trent normally buys tend to come in packs of 6, 10, 12, or 15 cards. after selecting 2 packs, trent found that the first pack of cards cost 25 cents per card, and the second pack cost 30 cents per card. trent uses this information to write the equations below in order to compare c, the number of cards in each pack.

Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b