Lily buys a new computer advertised for $799. Sales tax is 5% . She must also pay for 1 year of internet service for $15.99 per month including tax . What is the total cost

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!

Evaluate cos2θ for cosθ = square root of 3/2

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way