Aplayground is being designed where children can interact with their friends in certain combinations.

if there is 1 child, there can be 0 interactions.
if there are 2 children, there can be only 1 interaction.
if there are 3 children, there can be 5 interactions.
if there are 4 children, there can be 14 interactions.

which recursive equation represents the pattern?

an = an - 1 + 2(n - 1)

an = an - 1 + (n - 1) 2

an = an - 1 + 2(n - 1)

an = an - 1 + (2n - 1)

choice b is correct

step-by-step explanation:

we have been given the following system of inequalities;

we are required to graph the solution to the system of inequalities. using a graphing tool, the graph of the system is as shown in the attachment. the continuous line represents the graph of while the dotted line represents .

jbankston is right, use thhe link and you should find the answer.

c. he organized a political resistance group based on islam.

280 degrees

step-by-step explanation:

first, take -800 and add it to 360 until you get a positive number