A vinyl record has a circumference of 78.5 cm. What is its area? Use 3.14 for pi and round to the nearest square cm.

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

Formulate alisha has a number in mind. if she adds three to her number the result is less than five. use this information to write and solve an inequality about alisha's number. then graph the solution set.