A panda and a giraffe are 300 feet apart when they start moving towards each other. The panda is running at a speed of P feet per minute, and the giraffe is running G feet per minute faster. How soon will they meet?

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!