The sum of eighteen and eight times a number is ninety.
what is the number?

Lines p and q intersect. find the value of b. show your work. cite any theorems you use.

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)