In 2013, a state library received a three-year grant to add 69,678 books to their collection. during a used book sale, the library sold 430 books. if the collection now is five times more than the original number of books, how many books did the library hold before it received the grant?

how do i figure this out?

In the pendulum formula t=2pi. read the problem on the picture ! ; $; $; ! ; ! ; ! ; )$; ! ; ! ; ! ; $; $; $! ; ! ; ); $; $$

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

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.