Suppose you buy a home and finance $265,000 at $2,253.17 per month for 30 years. What is the amount of interest paid? (Round your answer to the nearest cent.)
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How many natural numbers n satisfy the inequality: 1/7 < n/10 < 4/5 ?

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?