Use substitution to solve the following equations:
2x-y=7
x-y=3

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

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

How do you write 0.5% as a fraction