Can anyone help me please?

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3

At a pizza shop 70% of the customers order a pizza 25% of the customers order a salad and 15% of the customers order both a pizza and a salad if s customer is chosen at random what is the probability that he or she orders either a pizza or a salad