Consider the graph of the following quadratic function. the equation of the quadratic function is repersented by this graph is y=a(x-3)^2-1.what is the value of a?

Will used 20 colored tiles to make a design in art class. 5/20 of his tiles were red. what is an equivalent fraction for the red tiles?

What is the absolute value of the complex number -4-sqrt2i

Tony is charged $ 50 and additional $0.15 per miles for renting a car. a) represent the cost of renting a car with an equation,and the determine the cost if he drove it70 miles.b) what would be the cost of a car rental if the car was driven 250 miles? show work