At a hobby store, the owner decides that he must display at least 20 more baseball
cards than hockey cards.
Let “x” represent the number of hockey
cards displayed and let “y” represent the
number of baseball cards displayed.

Find the power series expantion of f(z)=log(4=3z) at the point z=-1

State whether weight is a function of height for the six students and explain. a. yes, height is a function of weight because two students weigh 165 pounds but have different heights. b. no, height is not a function of weight because two students weigh 165 pounds but have different heights. c. yes, weight is a function of height because for each value of height there is one corresponding value of weight. d. no, weight is not a function of height because there is not enough data to determine a function.

Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out