If the graph of f(x)= 3^x is reflected over the x-axis, what is the equation of the new graph?

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.

What value of x is in the solution set of 4x – 12 s 16 + 8x?