PLEASE HELP ASAP!! I AM PRETYY SURE THE ANSWER IS 10 BUT I NEED THE STEPS

Each cookie sells for $0.50 sam spent $90 on baking supplies and each cookie cost $0.25 to make how many cookies does sam need to sell before making a profit formula: sales> cost

The graph shows the distance kerri drives on a trip. what is kerri's speed?

If you double the input of a function and it results in half the output, and if you triple the input and it results in a third of the output, what can be guessed about the function? check all that apply.