In order to be exempt from the semester exam in your math class, i must earn at least an 80% average. the total number of points in your class is 438. last week, i earned 120 points. this week i earned 90 points. how many more points must i earn this week earn at least a b (80% average)?

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 ,

The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet

The volume of a cube is 8 in to the 3rd power. how long is each side?