Mark used his debit card to buy groceries for $87 on Saturday and gas for $41 on Sunday. If his bank account balance is now $542, what was his starting balance on Saturday?

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

Write the equation of the circle centered at (10,-2) with radius 2

Alexandra drove from michigan to colorado to visit her friend. the speed limit on the highway is 70 miles per hour. if alexandra's combined driving time for the trip was 14 hours how many miles did alejandra drive?