Can someone help me out?

The average amount of money spent at Starbucks weekly is $12.63 with a standard deviation of $2.15: 47. What percent of the people spend less than $10.50 weekly at Starbucks? 48. What percent of the people spend in between $1 1.00 and $14.00 weekly at Starbucks? 49. Of 10,000 customers, how many spend more than $16.50 each week? 50. Of 250,000 customers, how many spend less than $14.00 each week