Wanda has 640 dollars in her checking account she pays her landlord 75 dollars per week for rent which function best models the linear relationships || y=640x+75 || 7=-75 + 640 || y= -75x - 640 || y= 75x + 640

Adoughnut shop charges $0.50 for each doughnut and $1 for a carryout box. shirley has $10 to spend. which inequality can be used to find d, the number of doughnuts she could have bought if she also wants them in one carryout box?