The amount of bacteria in an experiment can be modeled by the function f(x) = 2.5^x + 4, where x is the number of hours
passed since the beginning of the experiment.
while the mathematical range is all values greater than 4, the reasonable range has an unknown upper limit and y > _(greater than or equal too sign)

One shot. if 60% of 10 is 6, then what is 70%? we know it would be seven (since 60% is mathematically 60/100, or 6/10, then 70% is 70/100, or 7/10) but we can check anyway using ratios: 6 : 60% = x : 70%*inverse multiplicationx * 60% = 6 * 70%*divide both sides by 60%x = (6 * 70%) / 60%x = 7and since he has made 6 shots already, he would need just one more to get 7 shots or 70%. if the explanation is too confusing, comment and i will try to