50=50-10a It is for 2 step equations

What is the value of the expression below? (81^2)^1/8

Seattle, washington is known for being rainy. one day last month, 8 inches of rain fell in 1 1/2 hours. what us the rate of the rainfall expressed in ft per plzzz write a proportion i will give you 100 points

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12