The points (0, 1), (1, 13), (2, 23), and (3.31) are on the graph of a quadratic function. Calculate the second difference and state the a-value of the function.

What is x and y (use substitution? ) 5x+3y=38 and y=3x+8?

Tom and maria typed in words in the ratio of 1 : 5 in 20 minutes. they typed 864 words altogether. find the number of words that each of them typed

If myesha works overtime, she gets paid "time and a half" for every hour she works. in other words, for every hour over 40 hours myesha works each week, she gets her hourly pay plus half her hourly pay. what is myesha's pay per hour when she works overtime?