11 The table shows the percentage of battery life, y, that remains x hours after
a cell phone is turned on.
3
4
Cell Phone Battery Life
Hours, x
0
2
Percentage
100 75
50
Remaining, y
O
Based on the information in the table,
which equation can be used to model the
relationship between x and y?
Ay = 25x + 4
By -25% +100
o y = 25x 100
Dy = -4x + 25

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

Based on the spreadsheet below, which of the following is a true statement?

Complete the frequency table: method of travel to school walk/bike bus car row totals under age 15 60 165 age 15 and above 65 195 column totals 152 110 98 360 what percentage of students under age 15 travel to school by car? round to the nearest whole percent.