Pls solve this problem in an easy way using C program not C++

Section 2. Programming Problems 1. Write program codes in C language that shall ask for two numbers as input data and display their sum, their difference, their product and their quotient at the same time. 2. Write a program in C that shall automatically determine the total amount of money that you have by specifying the number of coins for each type of denomination (25 centavos, 1 peso, 5 pesos, 10 pesos) 3. An owner of a landscaping company was hired to plant Bermuda grass in a residential property. He has no idea of the actual land area to be planted with grass. What he can do is first determine the Area of the Land as well as the Area of the House to where the land is located, so that he can determine the amount of grass to plant. As a programmer, you are tasked to write a program to determine the land area to be planted. Your program should start by taking the length and width of the rectangular land, and the length and width of the rectangular house. Assume input is in meters. This information can then determine the area of the land for grass planting. 4. Revise problem #3. Add this operation that shall compute for the time required to cut the grass at the rate of two square feet per second