In a sequence of numbers, each term after
the first term is the result of multiplying
the previous term by 3 and adding 4 to the
product. If the 4th term in the sequence is 700,
what is the value of the first term?

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

What’s -11-33k and factor each expression completely

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)