15. the hydrogen ion concentration in moles per liter for a certain brand of tomato-vegetable juice is 0.000316.

a. write a logarithmic equation for the ph of the juice.
b. what is the ph of the juice?

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Which of the following is true for the relation f(x)=2x^2+1

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!