What’s values of x and y make the quadrilateral a parallelogram what is the answer

What are two numbers that add up to -9 and multiply to -10 best answer gets branliest and 100 extra points

The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school. each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220

If $190 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 4 years? use the continuous compound interest formula: a = pert