FOR 15 POINTS Which of the following relations represent a function?
{(-1,-3),(3,2),(3,7)}
{(-1,4),(2,7),3,7)}
{(-3,7),(3,-7),(3,7)}
{(-1,4),(-1,7),(3,5)}

Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

1. the wheeling bridge in west virginia is about 307 meters long. if you walk with a stride of about meter, about how many steps would it take you to cross this suspension bridge?

Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out