Example 13 A student has N500. She buys pencils at N50
each and erasers at N20 each. She gets at least
five of each and the money spent on pencils is
over N100 more than that spent on erasers.
Find a how many ways the money can be spent,
b the greatest number of pencils that can be
bought,
c the greatest number of erasers that can be bought.​

What is 20+(5 x 2/5 )+ 3 show your work

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.

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189