Hello, this is for programming in C++, I really need help with the questions below. Thank you so very very much.

10. Given the following declarations and assignmenta, write the one line of C++ code that could be used to perform each of the following tasks. Do not re-declare any variables in your answer. (3 points each) double *num; int points) (5, 8, 4, 9, 6) intxpoints char name new char [50] (a) Allocate memory for a double, and store its address in num. (b) Decrement the value pointed to by num by 1 (c) Print out the address where the first element of array points is stored. (d) Print out the third integer pointed to by x (i.e., the 4) using the address in x. You may not use brackets in your answer. (e) Delete all of the characters pointed to by name