C. Express each of the following in mathematical symbols.( write on the spaced provided)

1) The cube of a number decreased by its square.

2) The square of a number plus the number.

3) Four times a number diminished by six.

4) The square of the sum of x and y.

5) The suin of a number and its reciprocal

6) Four times a number is equal to fifteen.

7) Four times the difference between a number and three is equal to twenty-four.

8) A number added to six equals two.

9) Three subtracted from a number equals nine

10) Six minus a number divided by two is equal to twenty-one​