Colise has 2 vases of flowers that each hold 10 red and 5 yellow roses. michelle has the same total number of roses but in 3 vases. each vase has 6 red roses. how many yellow roses is in each of michelle's vase?

Find x & pleeeeaaaassseeee me !

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2