100POINTS I NEED FRIENDS TO PLAY GTA 5 WITH ME HAVE TO HAVE A MIC OH HERES MY QUESTION

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?