Determine the equation of a vertical line that passes through (9,-7)​

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

What is r i 4.5+10r=-6.5 with work pls

3. a sum of $2700 is to be given in the form of 63 prizes. if the prize is of either $100 or $25, find the number of prizes of each type.