How many minutes are there in a day? Show working for how you obtained the solution

How many seconds are there in a calendar year (365 days)? 

Show working to arrive at the solution

How many seconds are there in a day and how does one calculate that?

How to calculate the z-score in excel.

Provide as much details as possible including images that show the step by step process for me to follow through easily 

Write an expression to detect that the first character of userInput matches firstLetter.
#include <iostream>
#include <string>
using namespace std;

int main() {
string userInput;
char firstLetter;

getline(cin, userInput);
cin >> firstLetter;

if (/* Your solution goes here */) {
cout << "Found match: " << firstLetter << endl;
}
else {
cout << "No match: " << firstLetter << endl;
}

return 0;
}

Suppose that Mr, Binda buys a three-month 5,000 contract to buy "commodity-X' at a futures price of 1,0000 from Mr. John. The contract requires an initial margin of $70 per contract and maintenance margin of $40 per contract. Required a)   Compute the initial margin that both Mr. Binda must deposit to the clearing house. b)   Compute the maintenance margin that both Mr. Binda must deposit to the clearing house.

A survey by Frank N.Magid Associates revealed that 3% of Americans are not connected to the Internet at home. Another researcher randomly selects 70 Americans.

a. What is the expected number of these who would not be connected to the Internet at home?

b. What is the probability that 8 or more are not connected to the Internet at home?

c. What is the probability that between 3 and 6 (inclusive) are not connected to the Internet at home?

Appendix A Statistical Tables

*(Round your answer to 1 decimal place.)

**(Round your answers to 4 decimal places when calculating using Table A.3.)

a. Expected number = 

enter the expected number rounded to 1 decimal place

 *

b. P(x ≥ 8) = 

enter probability rounded to 4 decimal places

 **

c. P(3 ≤ x ≤ 6) = 

enter probability rounded to 4 decimal places

According to the empirical rule, the bell or mound shaped distribution will have approximately 95% of the data within what number of standard deviations of the mean?