ASAP HELP What is the pH of a solution with a hydronium ion concentration of 5.6 × 10-7? (pH = -log[H3O+])

A.
5.6

B.
6.25

C.
7.00

D.
14.40

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?

Which is f(5) for the function –2x2 + 2x - 3?

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4