a restaurant customer left $2.20 as a tip. the tax was 7% and the tip was 20% of the after tax cost. which information is not needed to compute the bill after tax and tip? what was the total bill?

Atype of plant is introduced into an ecosystem and quickly begins to take over. a scientist counts the number of plants after mmonths and develops the equation p(m)= 19.3(1.089)^m to model the situation. most recently, the scientist counted 138 plants.assuming there are no limiting factors to the growth of the plants, about how many months have passed since the plants werefirst introduced? a)o 6.1b)0.6.6c)10 72d)o 23.1