A certain species of fish costs $3.99 each. You can spend at most $45. How many of this type of fish can you buy for your aquarium?

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

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle