Tom buys a new phone service. it costs $20 to install, and then costs $15 a month. write an equation to show the cost of the phone (y) for any number of months (x). a. y=15x+20 b. y=20x+15 c. y=20x-15 d. 15x+20y=35

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: