7. which method would be the most efficient to solve the system? y = 1/2x, 2x + 3y = 28
a) graphing
b) substitution
c) elimination
d) distributive

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:

Use the distance formula to find the distance between (-3,5) and (3,1)

Use a standard normal table to determine the probability. give your answer as a decimal to four decimal places. −1.5< < 1.5)