Mike can plow a field in 12 hours and his brother phil can plow it in 15 hours. how long will it take them to plow it if they use two plows and work together?

When ∆rst is translated 4 units down, what are the apparent coordinates of t’? give 15 points

What are the coordinates of the hole in the graph of the function f(x) ? f(x)=x2−9x−3 enter your answer in the boxes.

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