Kim is reading a book with 380 pages. She read 20 pages each day until she reached Part 2 of the book. Part 2 of the book is 160 pages long. She uses the equation 380−20=160 380 - 20 d = 160 to represent the number of days, d, it took her to read Part 1. How many days did it take Kim to read Part 1 of the book?

The vet charges $45 for an office visit and $10 for each vaccination your dog needs. write an eaquation

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

Which expression is rational? 6. , square root two, square root 14, square root 49