could somebody explain what null hypothesis is (also alternative hypothesis, how to find, p-value, sth that related to this topic) briefly

The cost of camp, c, is going to increase by 8% next summer. write an expression that represents rhe expected cost for next summers camp.

How many solutions does the nonlinear system of equations graphed below 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