(10^2+8^2+6^2+4^2+2^2)- (9^2+7^2+5^2+3^2+1^2)

You download a video game to your computer. you have a 60-minute free trial of the game. it takes 5 1/6 minutes to set up the game 7 1/3 minutes to play each level. you want to find out how many levels you can play for free.which inequality describes the number of levels, l, you can play in 60 minutes? can you play 6 levels during your free trial? i need ,

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Point r divides in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?