Remy recorded the favorite sport of students at his school. He surveyed 500 students. How many students chose baseball? this is 100 points please help as fast as you can

Can someone explain the elimination method to me for this problem?

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

3c2 + 2d)(–5c2 + d) select all of the partial products for the multiplication problem above.