If you invest $20,500 in an account yielding 4.95% interest compounded semi-annually. How much will be in the account after 10 years?

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)

72 the length of a side of a triangle is 36. a line parallel to that side divides the triangle into two parts of equal area. find the length of the segment determined by the points of intersection between the line and the other two sides of the triangle.