Maritza, Kerstin, and Hermine are collecting books. Maritza has twice as many books as Kerstin. Hermine has 15 fewer books than Kerstin. The three girls have 113 books in all. How many books does Kerstin
have?

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

Bobs burgers bam has a special deal of 4 hamburgers for $6. at that rate, how much should it cost to buy 3 hamburgers?

Find the area of the shaded region.