The pH level, P, of a liquid can be determined from the hydronium ion (H3O+) concentration, c, using the equation P = –log(c). If the pH level of orange juice is 3.5, what is the hydronium ion concentration? 1.25 x 105

3.16 x 103

5.44 x 10–1

3.16 x 10–4 (the answer)

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

Equation for the calculation double 2 and then add 5