Which of the following equations is not exponential?

y = 1^x
y = (1/2)^x
y = -2^x

The two-way table shows the number of people whose hobbies are reading or solving puzzles and who either ride a motorcycle or don’t ride a motorcycle. among people whose hobby is reading, what is the relative frequency of not riding a motorcycle? express your answer as a decimal, and round it to the nearest hundredth if necessary. enter your answer in the box. reading solving puzzles ride a motorcycle 7 3 don't ride a motorcycle 5 9

How do i take any fraction and make it into a decimal or percentage?

Solve the equation for b: a= (1/2)(b)(h)