Find the missing fraction.
1/2 + =7/8

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

What is the definition of exponential decay?

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.