The wildflowers at a national park have been decreasing in numbers. there were 1200 wildflowers in the first year that the park started tracking them. since then, there have been one fourth as many new flowers each year. create the sigma notation showing the infinite growth of the wildflowers and find the sum, if possible.

Phyllis and chen are saving money to go to a football game. each friend starts with some money and saves a specific amount each week. phyllis made a graph to show the total she has saved at the end of each week. chen wrote an equation to show the total, y, he has saved at the end of each week, x. y = 15x + 15 compare the amount that each friend has when both friends start saving. select the correct answer from the drop-down menu to complete the statement. phyllis starts with $ and chen starts with $

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

Quadrilateral abcd is a parallelogram with diagonals that intersect at point e. which of the following statements is true?