You have $37 to spend at the music store. each cassette tape costs $10 and each cd costs $13. write a linear inequality that represents this situation. let x represent the number of tapes and y the number of cds. 10x + 13y ≤ 37 13x + 10y ≤ 37 13x + 10y ≥ 37 10x + 13y ≥ 37

Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet

In new york city at the spring equinox there are 12 hours 8 minutes of daylight. the longest and shortest days of the year very by two hours and 53 minutes from the equinox in this year the equinox falls on march 21 in this task you use trigonometric function to model the hours of daylight hours on certain days of the year in new york city a. what is the independent and dependent variables? b. find the amplitude and the period of the function. c. create a trigonometric function that describes the hours of sunlight for each day of the year. d. graph the function you build in part c. e. use the function you build in part c to find out how many fewer daylight hours february 10 will have than march 21. you may look at the calendar.

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry