Abookkeeper needs to post the cost of a desk and chair into his records. the cost of the desk was 5 times more than the chair. the total cost for both is 720, what was the cost of the chair?

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

1. which of the following algebraic equations is equivalent to ? x^n = a a^n = x a^x = n x^a = n 2. 16^1/4= 1/2 2 4 3. (-36)^1/2= -6 1/6 no real number 4. 8^2/3= 4 8 16√2 )^5/2= 7,776 1/7,776 no real number 6. m ^ the square root of a^2m simplified is: 7. the square root of 3^3 times the square root of 2 simplified and in radical form is:

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10