A store employee surveys a random sample of 550 visitors to the store. Of those visitors, 320 bought something while in the store.

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?