The ratio of the number of roses to the number of lilies in a garden is 4:3. If there are 42 lilies in the garden, how many
roses are there in the garden?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Extra points! find the missing dimension! need asap

Solve: 25 points find the fifth term of an increasing geometric progression if the first term is equal to 7−3 √5 and each term (starting with the second) is equal to the difference of the term following it and the term preceding it.