Suppose you have 7 dimes and 6 nickels in your pocket. How many ways can you reach into your pocket and select one of each type?

These question are hard can you me with answers

Due to financial difficulties the owner of 4 skateboard stores is going to close 2 of his stores. based on the money earned at each store, which two stores should remain open?

Paul can type 60 words per minute and jennifer can type 80 words per minutes.how does paul's typing speed compare to jennifer's