Find the values of x and y.
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If 20% of a number is 35, what is 50% of that number?

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?

Can someone me with my math problem pls my teacher is on my back about this