Tamara finds the sum of two number cubes rolled at the same time. The chart below shows all possible sums from the 36 possible combinations when rolling two number cubes. How many times should Tamara except the sum of the two cubes be equal to 9 if she rolls the two number cubes 180 times?
The sum should be equal to 9 about _ time(s).
(Help!)

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

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

How many $20 bills do you need to have to make $280