Does anyone one know how to make a factor a decimal on the calculator

Asequence is defined recursively by the formula  f(n  +  1)  =  f(n)  +  3 . the first term of the sequence is  –4. what is the next term in the sequence? –7–117

How many triangles can be drawn with side lengths 4 centimeters, 4.5 centimeters, and 9 centimeters? explain

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom