If C=n^{2}+9n-8C=n 2
+9n−8 and D=3n-4,D=3n−4, find an expression that equals 2C+3D2C+3D in standard form.

In triangle abc segment de is parallel to the side ac . (the endpoints of segment de lie on the sides ab and bc respectively). find de, if ac=20cm, ab=17cm, and bd=11.9cm;

East black horse $0.25 total budget is $555 it'll cost $115 for other supplies about how many flyers do you think we can buy

William invested $5000 in an account that earns 3.8% interest, compounded annually. the formula for compound interest is a(t) = p(1 + i)t. how much did william have in the account after 6 years? (apex)