An airline allows each passenger 30 kilograms of luggage. carl has to lower the weight of his suitcase by 25% to stay within the limit. how much did the suitcase originally weigh?

Iam so stuck. what is the worked out answer for this question?

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases