Asalesperson's weekly paycheck is 40% more than a second salesperson's paycheck. the two paychecks total $1275. find the amount of each check.

The rows and columns of lattice points in a three-by-three square array are evenly spaced one unit apart. how many distinct triangles with at least one side of length 2 units can be drawn using three lattice points for the vertices?

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

Indicate the formula for the following conditions: p^c(n,r)=