. There are approximately 3.14 x 107 seconds in one year. How is this number written in standard form?

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

Consider the sequence below. 3 , 1 , 1/3 , 1/9 , select the explicit function which defines the sequence.

Which expression is equivalent to the expression for the perimeter of the larger garden?