I need help with math please

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

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?

A50% increase followed by 33 1/2% decrease