Today the coast of a gallon of gas is $2.65. every week for the next 10 weeks, it will increase by $0.05.a gallon. if you wrote a linear equation to model this situation, what would the slope be?

Evaluate the dot product of (3,-1) and (1,5)

You have $600,000 saved for retirement. your account earns 5.5% interest. how much, to the nearest dollar, will you be able to pull out each month, if you want to be able to take withdrawals for 20 years?

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?