calvin was earning $40 an hour giving basketball lessons, but decided to lower his prive to $34. What percent did he decrease his price.

15%  

Step-by-step explanation:

$40 : 100 = 0,4

1% is $0,4

$6 : 0,4 = 15%

So the percentage is 15%.

replace   with   27   and simplify.

10 , 27 , 10 , 70 , 10 , 35 , 10 , 48

step-by-step explanation:

93-8=85

855=17

17*4=68

there are 68 purple marbles in that bag