EASY POINTS:
The temperature is 16°F in the morning and drops to -15°F in the evening. What is the difference between these temperatures?

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

What is the value of the expression below? (81^2)^1/8

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab