A music store marks up the instruments it sells by 30%. a. If the store bought a guitar for 45$ what will be its store price?
b. If the price tag on a trumpet says 104$ how much did the store pay for it?

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