1. A Coastal geologist estimates that a certain country's beaches are eroding at a rate of 2.25 feet per year. According to the geologists estimate, how long will it take, in years, for the
country's beaches to erode by 81 feet?

Nick and nora are married and have three children in college. they have an adjusted gross income of 47,400. if their standard deduction is 12,600 itemized deductions are 14,200 and they get an exemption of 4000 for each adult and each dependent what is their taxable income

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.