Algebra 1, find the solutions to the following systems of equations: -the sum of two numbers is 84. their difference is 20. write a system of equations that describes this situation. find the two numbers.

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.

How do you determine if an ordered pair is a solution to a given equation?