Two larger cubes are made out of unit cube cube a is 2 x 2 x 2 QB is 4 x 4 x 4 the side length of QB is twice that of cube a is the service area of QB also twice that of cube a

What number should be added to both sides of the equation to complete this square? x^2-10x=7

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.

25) 56(1) = 5b a. identity property of addition b. identity property of multiplication c. commutative property of multiplication d. commutative property of addition