F(a) = a3 + 5a2 + 10a + 12 at a = -2 A. 3
B. 4
C. 2
D. 11

help me please​

Which expression is rational? 6. , square root two, square root 14, square root 49

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?

Jane has 5 nickels.john has 3 dimes.jane says she has a greater amount of money.with the information given,is she correct?