The function y=2.50x+20 can be used to determine the cost in dollars for the rental of x games for game store members. What is the rate of change of the cost in dollars with respect to the number of games? I FEEL NICE SO I'M GIVING AWAY BRAINLIEST IF YOU GET IT RIGHT

22 points algebra 1//sum and product of rational and irrational numbers. dont have to do all 4 if could much : )) write an example: 1) how the product of two identical irrational numbers can be a rational number. 2) how the product of two different irrational numbers can be a rational number. 3) write a quotient of intergers that is not a real number. 4) is the set of positive irrational numbers closed for the operation of division? if not give a counter example.