Y=5(x-2)^2 +4 is the parabola opening up or down? what is the axis of symmetry?

22. catie is starting a babysitting business. she spent $26 to make signs to advertise. she charges an initial fee of $5 and then $3 for each hour of service. write and solve an inequality to find the number of hours she will have to babysit to make a profit. interpret the solution.!

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g

Can someone me find the original price? the discount is 5% and the sale price is $68.40