Sarah deposits 2,000 at a bank at an interest rate of 4.5% per year. How much interest will she earn at the end of 3 years ?

There are 20 children in the cast of a class play and 8 of the children are boys of the boys 4 have a speaking part in the play and of the girls 8 do not have a speaking part in the play if a child from the cast of the place chosen at random what is the probability that the child has a speaking part

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.