Can someone please help! Does anyone know what the domain and range is for:
f(x) = x2 + 2x + 3 ​

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

The median of a data set is the measure of center that is found by adding the data values and dividing the total by the number of data values that is the value that occurs with the greatest frequency that is the value midway between the maximum and minimum values in the original data set that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?