Jamilla constructed a round igloo with a radius of 2 feet. Padima wanted the base area of his igloo to be 4 times larger than Jamilla's. Which change in dimension did Padima have to make?

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