English phrase into mathematical phrase

1 Half of a number decreased by eighty-five

2 Ten divided by the sum of a number and three

3 Subtract the product of a and b from the product of 8 and t

4 From 29, subtract the product of 6 and r

5 Multiply thrice of k by the sum of c and e

6 multiply s to the difference of f and 7

7 The square of a number added by 58

8 multiply the sum of h and k to the
difference of g and d

9 From the product of r and c,
subtract ³/4 of e

10 the square of a number subtracted from five times another number​